

Flexible PCBs (FPCs) are central to the miniaturization and weight reduction of electronic devices. This guide profiles Japan-based manufacturers with demonstrated expertise across multiple industries.
Each company has different motivations for looking for a flexible printed circuit board (FPC) supplier. Here we introduce three FPC manufacturers, each with their own areas of expertise, according to three typical needs.
Source: Sanyo Official Website (https://www.landingpage-synergy.com/6Ik8Yr0D/)
Reference: NOK Corporation product website (https://www.mektron.co.jp/)
Reference: Kaytwo official website (https://k2p.jp/)

Sanyo has more than 40 years of experience as a specialized manufacturer of ultra-small and high-definition substrates, and develops and manufactures flexible substrates with a fine pitch of 20 µm on each side using subtractive and semi-additive methods. We are also able to meet high-definition specifications that are difficult for other companies to meet, such as staggered 25 µm pitch.
Micro hole processing using chemical etching and blind via hole (BVH) connection for high-density wiring are available. It also supports micro-hole processing from 5 µm by micro polyimide etching process, contributing to miniaturization and high density of devices.
Learn More About the
Features On The Official Website
| Number of Layers | Single-sided, double-sided, and multilayer |
|---|---|
| Base Materials | Polyimide, Liquid Crystal Polymer (LCP) |
| Surface Finishes | Electrolytic gold plating: 0.03–0.5 μm Electrolytic gold plating (nickel underlayer): 0.3–0.5 μm Electroless gold plating (nickel underlayer): Up to 0.2 μm Minimum Pitch: Single-sided: From 20 μm; Double-sided: From 50 μm |
| Minimum Finished Hole Diameter | Top diameter: φ50μm (Bottom Diameter φ20μm) Land diameter: approximately bottom diameter + 90 µm |
| Use Cases | Semiconductor inspection systems; test equipment; LCD panel inspection devices. |
Sanyo supports a wide range of production needs—from prototyping to full-scale mass production.It can also be used for fine pitch and fine hole machining. We are also capable of processing that requires advanced technical skills, such as fine pitch and micro hole processing, and have achieved a wide range of support. We can flexibly meet the needs of customers who have been turned down by other companies due to strict requirements, or who want to make a prototype of a single FPC with special specifications.
Visit Sanyo’s Official Website
for More Details
| Address | 38-24 Oniyanagi, Odawara City, Kanagawa Prefecture, Japan |
|---|---|
| Response time | Not listed on the official website |
| Certifications | ISO 9001, ISO 14001 |
| Phone (Japan domestic only) | 0465-39-4141 |

MECTEC was established in 1969 as a specialized FPC manufacturer in the NOK Group, and has a history of more than 55 years. Unusually for an FPC manufacturer, MECTEC develops its own adhesives and other materials, and can propose optimal combinations of materials that bring out the required characteristics such as flexibility, heat resistance, and high frequency characteristics.
In addition to our Ushiku Plant in Japan, we have manufacturing facilities around the world. We have an extensive delivery record in fields that require mass production, such as smartphones, in-vehicle devices, and medical devices, and we provide products of stable quality through our global supply system.
On Mectec's official website.
for More Details
| Number of Layers | Single-sided, double-sided, multi-layered (flexboard) |
|---|---|
| Base Materials | Polyimide, liquid crystal polymer, transparent polyimide, etc. |
| Main Product Lineup | Long FPC, ultra-fine FPC, automotive FPC, high-frequency FPC, heater FPC, stretchable FPC, heat-resistant FPC (up to 150°C), ultra-thin FPC, transparent FPC, FPC integral gasket, etc. |
| Component mounting (semiconductor devices, micro chip components, connectors, etc.) |
MEC-Tech offers high-frequency, heat-resistant, ultra-thin, stretchable, transparent, etc.Extensive lineup of FPC products by functionThe lineup of FPCs includes the following products, enabling the selection of the most suitable substrate for each application and environment. Our flex-resistant FPCs used in the hinges of folding smartphones are highly regarded for their technology that can withstand millions of bending cycles.
On Mectec's official website.
for More Details
| Address | 1-12-15 Shiba-Daimon, Minato-ku, Tokyo (Head office) 1650-11-1 Okuharacho, Ushiku, Ibaraki, Japan (Ushiku Plant) |
|---|---|
| Response time | Not listed on the official website |
| Certifications | IATF 16949 |
| Phone (Japan domestic only) | 03-5830-6365 (Tokyo Office) 029-830-9150 (Ushiku Plant) |

KITO uses NC machines instead of dies for coverlay and external machining, which significantly reduces initial costs. Our unique know-how enables us to achieve a machining accuracy of ±0.05 mm while providing a finish comparable to that of die machining, leading to lower initial costs.
Our integrated in-house production system at our domestic factory enables us to deliver a single-sided flexible board in as little as two days. We also have our own copper plating and gold plating facilities, eliminating the need for subcontracting, enabling quick delivery of medium-lot products. We also operate on Saturdays, so we can flexibly respond to urgent orders.
On Kaytwo's official website.
for More Details
| Number of Layers | Single-sided, double-sided, multilayer (3 to 8 layers) |
|---|---|
| Thinnest total thickness | 100µm (double-sided flexible circuit board) |
| Machining accuracy | ±0.05mm (NC machine used) |
| Supported substrates | Flexible substrates, rigid flexible substrates, build-up substrates, fluoroplastic substrates, etc. |
| Other | Halogen-free compatible |
Kay-Tu waveSpecializes in prototypes of one piece to medium-lot production (500 to 2,000 pieces)We are able to provide cost-effective and quick delivery even for medium-lot products, which tend to have high initial costs for mass-production manufacturers. Our integrated in-house production and thorough delivery management ensure delivery without any omissions during the manufacturing process.
On Kaytwo's official website.
for More Details
| Address | 4-13-22 Minami Terakata Higashi-dori, Moriguchi-shi, Osaka Prefecture |
|---|---|
| Response time | Also operates on Saturdays (details to be confirmed) |
| Certifications | ISO9001 / ISO14001 / UL certified factory |
| Phone (Japan domestic only) | 06-6998-3867 |
What do experts look for when choosing flexible PCBs?
We interviewed eight professionals involved in equipment manufacturing and design to understand the criteria they prioritize when selecting a supplier or product.
If you are considering the adoption of flexible PCBs, the insights below may inform your supplier evaluation.
Technical capabilities are the top priority.
Durability and cost-effectiveness.
Materials, bend ratio (R/t), and price.
Survey Target: 8 individuals with professional experience using flexible PCBs / Date Conducted: December 12, 2023 (Survey Organization: Sprint)
Among respondents, technical capabilities and performance were cited most frequently as the critical factors.
“Technical expertise” was cited as the top priority, followed by “price.”
Because deficiencies in performance or engineering precision can directly affect the final product, these points should be treated as primary evaluation criteria when selecting a supplier.
Cost and customer service.
Poor quality from the previous supplier.
Prices were higher and lead times longer than competitors.
Survey Target: 8 individuals with professional experience using flexible PCBs / Date Conducted: December 12, 2023 (Survey Organization: Sprint)
Many cited cost as the primary reason for changing suppliers, with quality coming in a close second.
To ensure you get a high-quality, cost-effective PCB, it’s strongly recommended to obtain competitive quotes from multiple suppliers.
Three companies.
Two companies.
Five companies.
Survey Target: 8 individuals with professional experience using flexible PCBs / Date Conducted: December 12, 2023 (Survey Organization: Sprint)
Five out of eight respondents reported usually requesting quotes from three suppliers.
Some go further and contact up to five companies to compare pricing and lead times.
Most respondents noted that online research is their primary method for gathering supplier information
We introduce a selection of companies that offer Flexible PCBs (FPCs). Review the types of Flexible PCBs each company handles and the services they provide to identify suitable partners for your needs.
Aisan Denki handles Flexible Printed Circuit Boards (FPCs) manufactured using a process distinct from conventional methods. This approach allows for reductions in both manufacturing costs and environmental impact.
| Address | 1-12-3 Sotokanda, Chiyoda-ku, Tokyo |
|---|---|
| Phone (Japan domestic only) | 03-3253-3611 |
Atsugi Micro offers laminated patterning on substrates by processing metal and resin films. They are known for handling a wide variety of substrate types and sizes.
| Address | 366 Hase, Atsugi-shi, Kanagawa Prefecture |
|---|---|
| Phone (Japan domestic only) | 046-248-7007 |
Focusing on the quality and delivery of flexible PCBs, Art Denshi provides integrated support from design through assembly. Through detailed consultations, they can offer preliminary evaluations and propose optimal board configurations and specifications.
| Address | 23-5 Higashimikata-cho, Kita-ku, Hamamatsu, Shizuoka (Art Techno Kaikan) |
|---|---|
| Phone (Japan domestic only) | 053-439-7411 |
Eight Kougyou has secured certifications from various organizations—including AXA, the Ministry of Defense, aerospace standards, and ISO standards—giving them a strong edge in board quality and responsiveness.
| Address | 6-7-9 Tsunashima Higashi, Kohoku-ku, Yokohama, Kanagawa |
|---|---|
| Phone (Japan domestic only) | 045-542-0111 |
With the ability to manufacture many types of flexible PCBs, Tohama can address even niche and detailed customer requirements. They produce FPCs tailored to client needs from a diverse selection of materials, configurations, and product lineups.
| Address | 2661-19 Shinbashi-cho, Minami-ku, Hamamatsu, Shizuoka |
|---|---|
| Phone (Japan domestic only) | 053-442-5932 |
Offering a wide variety of flexible PCBs, Oki Electric Cable enables you to choose a product that meets your specific objectives and challenges. Their boards are suited for numerous applications.
| Address | 2-12-8 Shimokodanaka, Nakahara-ku, Kawasaki, Kanagawa |
|---|---|
| Phone (Japan domestic only) | 044-766-3171 |
In addition to proposing solutions tailored to specific purposes, applications, and challenges, Kansai Denshi offers integrated services covering design, manufacturing, and mounting. Single-sided and double-sided non-through-hole boards can be produced in as little as 3 days, enabling cost reductions.
| Address | 2-22, 4-chome, Suidocho, Amagasaki City, Hyogo Prefecture, Japan |
|---|---|
| Phone (Japan domestic only) | 06-6437-0949 |
With a fully in-house one-stop solution model, Kyoden handles everything from product planning and development to material procurement, design, and manufacturing. They are capable of handling mass production and short lead times.
| Address | 482-1 Mikkamachi, Minowa-machi, Kamiina-gun, Nagano Prefecture |
|---|---|
| Phone (Japan domestic only) | 0265-79-0012 |
Specializing in mid-lot production, K2 can handle orders of 500 to 1,000 Flexible Printed Circuit Boards (FPCs) more affordably and with shorter lead times than mass-production manufacturers.
| Address | 4-13-22 Minami Terakata Higashi-dori, Moriguchi-shi, Osaka Prefecture |
|---|---|
| Phone (Japan domestic only) | 06-6998-3867 |
Circ Tec is an FPC prototyping manufacturer offering total support from board planning to evaluation. They propose utilization methods across a wide range of fields.
| Address | 5-11-21 Handayama, Chuo Ward, Hamamatsu City, Shizuoka Prefecture, Japan |
|---|---|
| Phone (Japan domestic only) | 053-522-9255 |
Strong in FPC prototyping and manufacturing, Sanesu Electric utilizes router processing instead of creating molds, enabling significant cost reductions.
| Address | 165 Nakamachi, Kodaira City, Tokyo |
|---|---|
| Phone (Japan domestic only) | 042-343-1831 |
Leveraging their development and proposal capabilities, Sunhayato handles board customization and also supports self-service board manufacturing, assisting individuals and companies in producing their own boards.
| Address | 3-40-1 Minamiotsuka, Toshima-ku, Tokyo |
|---|---|
| Phone (Japan domestic only) | 03-3984-7791 |
Sanyo handles the entire process from design to manufacturing in-house, allowing consultation starting from material selection and design. They can accommodate a wide range of processes requiring advanced technical skills, such as fine-pitch and micro-via processing.
| Address | 38-24 Oniyanagi, Odawara City, Kanagawa Prefecture, Japan |
|---|---|
| Phone (Japan domestic only) | 0465-39-4141 |
Through collaboration between domestic factories and affiliated overseas manufacturers, Sanwa Electronic provides various high-quality boards. They offer a one-stop service from order placement to delivery.
| Address | 3-28-1 Kuwazu, Higashisumiyoshi-ku, Osaka-shi, Osaka |
|---|---|
| Phone (Japan domestic only) | 06-4301-0431 |
Shirai Electronics offers flexible responses regarding delivery times, board types, and support content. They produce transparent Flexible Printed Circuit Boards (FPCs) using a special ultra-thin polyethylene base material.
| Address | 46-2 Minami-Hirocho, Umezu, Ukyo-ku, Kyoto-shi, Kyoto |
|---|---|
| Phone (Japan domestic only) | 075-861-8100 |
Signus allows customers to select the optimal production site based on needs such as delivery time and cost. They provide support from design to mounting, tailored to the situation.
| Address | 49-11 Katsuranozato-cho, Nishikyo-ku, Kyoto, Japan |
|---|---|
| Phone (Japan domestic only) | 075-383-5747 |
SystemGear offers full support from PCB mounting and assembly to final product inspection. They can deliver fully assembled PCBs with just one order and also support small-batch prototyping, mass production, and component-supplied assembly.
| Address | Takarazuka Technical Center, 1-7-11 Takashi, Takarazuka, Hyogo, Japan |
|---|---|
| Phone (Japan domestic only) | 0797-74-0621 |
Shinko Shashin Service offers integrated services from board production to component mounting. With decades of experience since its founding in 1977, the company can support even specialty boards starting from single prototypes.
| Address | 4363-18 Ikebe-cho, Tsuzuki-ku, Yokohama City, Kanagawa Prefecture |
|---|---|
| Phone (Japan domestic only) | 045-933-8311 |
Scott Design System produces Flexible Printed Circuit Boards (FPCs) under an integrated system at their company-operated factory. They handle pattern design, component mounting, and component procurement for mounting, offering one-stop, total services.
| Address | 1-7-5 Daidori, Higashiyodogawa-ku, Osaka City, Osaka, Japan |
|---|---|
| Phone (Japan domestic only) | 06-6370-0861 |
Sumitomo Electric has commercialized numerous Flexible Printed Circuit Boards (FPCs) with added functionalities. They offer products like high-frequency flexible printed circuit boards made of fluororesin with low transmission loss in the millimeter-wave band.
| Address | Sumitomo Building, 4-5-33 Kitahama, Chuo-ku, Osaka-shi, Osaka |
|---|---|
| Phone (Japan domestic only) | 06-6220-4141 |
Daisho Electronics offers "High-Density Flex-Rigid Boards," which integrate Flexible Printed Circuit Boards (FPCs) and build-up boards. This eliminates the need for connectors, enabling thinner and smaller designs.
| Address | 2-16-5 Denenchofu, Ota-ku, Tokyo, Japan |
|---|---|
| Phone (Japan domestic only) | 03-3722-2151 |
Taiyo Industry caters to a wide range of needs, from standard Flexible Printed Circuit Boards (FPCs) to high-functionality FPCs. They have established an integrated FPC production system capable of handling everything from rapid prototyping to mass production.
| Address | 661 Arimoto, Wakayama City, Wakayama Prefecture |
|---|---|
| Phone (Japan domestic only) | 073-431-6311 |
Offering a one-stop service from artwork design to parts procurement, assembly, and packaging, Denshi Gihan supplies not only within Japan but also internationally—including deliveries to Hong Kong and other countries.
| Address | 62-8, Toyotsu-cho, Suita-shi, Osaka |
|---|---|
| Phone (Japan domestic only) | 06-6386-0401 |
As a subsidiary of the NOK Group, MECTEC Corporation is engaged in integrated production of high-performance FPCs in Japan and overseas. With technologies such as ultra-thin, high-flexibility, and high-frequency compatibility, MECTECH responds to needs in various fields such as smartphones, automotive, and medical devices, and achieves high quality and short delivery times.
| Address | 1-12-15 Shiba Daimon, Minato-ku, Tokyo, Japan |
|---|---|
| Phone (Japan domestic only) | 029-830-9150 |
Leveraging its strength as a manufacturer of special and functional materials, Nitto Denko caters to special specifications—such as environmentally friendly, halogen-free flexible PCBs.
| Address | Grand Front Osaka Tower A, 33F, 4-20 Ohfuka-cho, Kita-ku, Osaka City, Osaka |
|---|---|
| Phone (Japan domestic only) | 06-7632-2101 |
Hakkou Denshi offers flexible PCBs suited for various applications. They also provide solutions that reduce cost and labor, such as boards designed for automated assembly and those pre-processed for bending.
| Address | 2-17-2 Mizuhai, Higashi-Osaka City, Osaka, Japan |
|---|---|
| Phone (Japan domestic only) | 072-962-0301 |
Fujikura supplies a wide range of flexible PCBs in various shapes, including ultra-fine, long-length types and boards with pre-mounted components to accommodate unique designs.
| Address | 1-5-1 Kiba, Koto-ku, Tokyo, Japan |
|---|---|
| Phone (Japan domestic only) | 03-5606-1030 |
Specializing in advanced printed circuit board manufacturing, Fuji Print Kogyo supports flexible PCBs based on polyimide, polyester, and liquid crystal polymer substrates.
| Address | 315-11 Shimoongata-machi, Hachioji City, Tokyo, Japan |
|---|---|
| Phone (Japan domestic only) | 042-650-8181 |
By managing the entire process—from design and manufacturing to delivery—within their own facilities, Towa Printed Circuit is able to schedule production based on specifications and man-hours, ensuring short lead times.
| Address | 5-6-5 Sanda-cho, Hachioji-shi, Tokyo |
|---|---|
| Phone (Japan domestic only) | 042-666-0272 |
Furukawa Electric offers a diverse lineup of copper foil products for printed circuit boards. For flexible PCBs, they provide the F-WS and FWL-WS series, which are known for their excellent adhesion.
| Address | Tokiwabashi Tower, 6-4, Otemachi 2-chome, Chiyoda-ku, Tokyo |
|---|---|
| Phone (Japan domestic only) | 03-6281-8500 |
Fine Labo specializes in YAG laser processing and prototype manufacturing of flexible PCBs, supporting multilayer boards up to 10 layers.
| Address | 1-14-18, Osaka, Otsu-shi, Shiga |
|---|---|
| Phone (Japan domestic only) | 077-524-7000 |
With over 50 years of experience in printed circuit board manufacturing and more than 1,000 board types produced (as of January 2022), PDK has extensive know-how and a strong track record.
| Address | 177-4 Ichinotsubo, Nakahara-ku, Kawasaki City, Kanagawa Prefecture, Japan |
|---|---|
| Phone (Japan domestic only) | 044-411-4991 |
Maruwa supports the production of flexible PCBs on various scales—from development cooperation and prototyping to mass production. They also offer in-house developed FPCs with unique functionalities.
| Address | 1624-1 Oguchi-cho, Matsusaka City, Mie Prefecture, Japan |
|---|---|
| Phone (Japan domestic only) | 0598-52-1855 |
Maruwa Manufacturing can manufacture and produce flexible printed circuit boards (FPCs) of various scales, from development cooperation, prototyping, to mass production. We also provide flexible substrates (FPC) with special functions developed in-house.
| Address | 8-1 Aza-Iwai, Otonashi, Sambongi, Osaki City, Miyagi Prefecture |
|---|---|
| Phone (Japan domestic only) | 0229-52-2055 |
By leveraging its in-house design and EMS divisions, Meiko provides proposals tailored to customer needs—from board design through assembly and product integration.
| Address | 5-14-15 Ogami, Ayase City, Kanagawa Prefecture, Japan |
|---|---|
| Phone (Japan domestic only) | 0467-76-6001 |
Yamachi Electric offers the flexible PCB “YFLEX®” which utilizes a liquid crystal polymer base film. “YFLEX®” is designed for high-frequency applications in the millimeter-wave band, as well as for high temperature/humidity and high gas-barrier environments.
| Address | Technoport Taiki Seimei Building, 2-16-2 Minami-Kamata, Ota-ku, Tokyo |
|---|---|
| Phone (Japan domestic only) | 03-3734-0110 |
In producing fine-pitch flexible PCBs, Raytech caters to a variety of small-to-medium lot prototypes and production runs. They also offer “Flying Lead Flexible PCBs.”
| Address | Yaesu Ryumeikan Bldg. 6F, 1-3-22 Yaesu, Chuo-ku, Tokyo |
|---|---|
| Phone (Japan domestic only) | 03-6262-7875 |
Unicraft provides online PCB manufacturing estimates and order placements. You can also specify whether you need Gerber data (PCB design data) created.
| Address | 2F Yamase Building, 206-20 Sakuramiya-cho, Omihachiman City, Shiga Prefecture |
|---|---|
| Phone (Japan domestic only) | 0748-43-1760 |
A dedicated PCB manufacturer from Taiwan, ExPlus offers a full range of order-based services including PCB design and manufacturing.
| Address | 3F, No.534, Sec.1, Minsheng N. Road, Guishan Dist., Taoyuan City 333, Taiwan |
|---|---|
| Phone (Japan domestic only) | +886.1.3116.170 |
Known for its emphasis on heat resistance, dimensional stability, and quality, Panasonic offers the “FELIOS Series” flexible PCBs featuring three different board materials.
| Address | 1006, Oaza-Kadoma, Kadoma City, Osaka, Japan |
|---|---|
| Phone (Japan domestic only) | 06-6908-1121 |
PCBGOGO streamlines the ordering process—no factory visits or consultations required. Simply complete the necessary information online to place your order for flexible PCBs.
| Address | 33 Building, Longwang Temple Industrial Zone, Fuyong Street, Shenzhen, Guangdong, China |
|---|---|
| Phone (Japan domestic only) | +86-755-23300601 |
Specializing in rigid-flex board manufacturing, Seika Sangyo caters to applications in industrial cameras, aerospace electronics, medical devices, communication base stations, railways, and wearable devices. They focus on small-lot, multi-product production and also manufacture boards using special materials.
| Address | 3-3-1 Marunouchi, Chiyoda-ku, Tokyo (Shin-Tokyo Building) |
|---|---|
| Phone (Japan domestic only) | Not listed on the official website |
Utilizing SMT assembly lines, 3D AOI, 3D SPI, in-house simple AOI devices, flow soldering tanks, bench-top soldering robots, and trace soldering equipment, Konica Minolta Mechatronics achieves highly efficient PCB assembly.
| Address | 2, Higashi-Akado, Yawata-cho, Toyokawa-shi, Aichi, Japan |
|---|---|
| Phone (Japan domestic only) | 0533-88-7661 |
They manufacture four types of flexible PCBs: single-sided, double-sided, multilayer, and rigid-flex. With support for various layer counts and pitches, they can produce rigid-flex boards from 2 to 8 layers on a single side.
| Address | 13-1 Higashifudatsu-cho, Higashikujo, Minami-ku, Kyoto, Japan |
|---|---|
| Phone (Japan domestic only) | 075-681-7103 |
Their rigid-flex boards use a 12.5μm polyimide layer to enhance flexibility. With all manufacturing processes handled in-house, their team of specialists works together—even when project details are not yet fully defined—to propose and realize optimal solutions.
| Address | 1-16-2 Shinmeidai, Hamura City, Tokyo, Japan |
|---|---|
| Phone (Japan domestic only) | 042-554-5265 |
Catering to needs ranging from a single prototype to mass production, PC Electronics maintains high quality through an integrated EMS system that covers design, development, assembly, and inspection.
| Address | 6-19-29 Higashi-Mikuni, Yodogawa-ku, Osaka, Japan |
|---|---|
| Phone (Japan domestic only) | 06-6396-6314 |
With a unified facility for design through production, Toshiba Hokuto Electronics responds quickly to demands. Their agile production line and integrated manufacturing process contribute to lower costs, and they meet a wide range of needs—from prototypes to mass production with short lead times.
| Address | Toshiba Building, 1-1-1 Shibaura, Minato-ku, Tokyo, Japan |
|---|---|
| Phone (Japan domestic only) | 03-3457-4877 |
Murakami Electric Industrial Co.,Ltd. has established a total system that enables integrated in-house production at a single factory. Their high-density, multilayer press lines cater to everything from prototypes to mass production, with flexible production scheduling.
| Address | 2-4-20, Kamihigashi, Hirano-ku, Osaka-shi, Osaka |
|---|---|
| Phone (Japan domestic only) | 06-6793-5546 |
With its own system for generating online estimates, Marutsuelec allows you to select specifications online and instantly receive an estimate. Once data is uploaded, the order is completed through a streamlined, fast process.
| Address | Seiki Daiichi Building 7F, 5-2-2 Sotokanda, Chiyoda-ku, Tokyo |
|---|---|
| Phone (Japan domestic only) | 03-6803-0209 |
Not only focused on electronic components, Inatron excels at total production services by offering comprehensive proposals that address your specific objectives. They even have sales assistants to ensure rapid response and high customer satisfaction.
| Address | 6135-1 Minamiminowa Village, Kamiina-gun, Nagano, Japan |
|---|---|
| Phone (Japan domestic only) | 0265-76-3322 |
Howa Sangyo Co., can produce flexible PCBs starting from a single prototype. In addition to prototype processing using new technologies, they engage in technological development under the theme “From Imagination to Creation,” achieving unprecedented fine patterns with etching and additive methods.
| Address | 2F Omori Building, 13-1 Ichiyadai-cho, Shinjuku-ku, Tokyo |
|---|---|
| Phone (Japan domestic only) | 03-6273-0090 |
Designated as a certified factory by the Ministry of Defense and JAXA, OKI Circuit Technology is known for its quality management system. They have built up extensive simulation and design know-how and provide high-quality, one-stop solutions.
| Address | 1-15-68, Takarada, Tsuruoka-shi, Yamagata |
|---|---|
| Phone (Japan domestic only) | No mention on official website |
Serving the medical, optical communications, and automotive industries, Yamashita Material supplies FPCs from its Tokyo headquarters. They can conduct nationwide business meetings via Microsoft Teams or Zoom and support everything from design and post-processing to inspection after component mounting.
| Address | 3-5-13 Minami-Shinagawa, Shinagawa-ku, Tokyo, Japan |
|---|---|
| Phone (Japan domestic only) | 03-3474-0611 |
Headquartered in Kyoto yet serving nationwide, Cosmotec Co., Ltd. is committed to high quality and continuously improving defect detection rates, ensuring the supply of superior flexible boards.
| Address | 393 Nishikanesaki, Kanshuji, Yamashina-ku, Kyoto City, Japan |
|---|---|
| Phone (Japan domestic only) | 075-502-2835 |
Canon Components rigorously inspects every product with automated visual and electrical tests. With decades of experience from development through mass production, they develop products for both B2B and B2C markets.
| Address | 3461-1 Nanamotogi, Kamisato-machi, Kodama-gun, Saitama, Japan |
|---|---|
| Phone (Japan domestic only) | 0495-33-3111 |
Performing in-house design and manufacturing at their domestic facilities, Shinwa Print Industry offers integrated services from development to assembly. Their dual approach in both their factory and assembly division reduces time lags, enabling short lead times and rapid production.
| Address | 1487-48 Kawaguchi-cho, Hachioji-shi, Tokyo, Japan |
|---|---|
| Phone (Japan domestic only) | 042-655-4501 |
With extensive experience working with many major manufacturers, Growth supports you from artwork design and high-frequency board production to circuit design assistance and bare chip assembly. Their artwork design department is composed solely of experienced hardware product developers.
| Address | Taiki Seimei Yokohama Sakuragicho Bldg. 5F, 6-84-2 Ota-cho, Naka-ku, Yokohama City, Kanagawa Prefecture |
|---|---|
| Phone (Japan domestic only) | 045-680-4722 |
CMK Japan offers a semi-flex product that has passed a 30‑minute continuity test between –65°C and 125°C. With operations in Japan, America, and Thailand, they are actively expanding their global presence.
| Address | 43F Shinjuku Island Tower, 6-5-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo, Japan |
|---|---|
| Phone (Japan domestic only) | Not listed on the official website |
Daisho Denshi has achieved full company certification for ISO9001 and ISO14001, and they have implemented an accreditation system for partner factories to back up quality guidance. They manage partner relationships based on ISO9001 standards to ensure high-quality product development.
| Address | 2-16-5 Denenchofu, Ota-ku, Tokyo, Japan |
|---|---|
| Phone (Japan domestic only) | 03-3722-2151 |
In addition to ISO9001 and ISO14001 certification, Taiyo Industry has invested in quality-checking equipment—such as automated 2D/3D coordinate measuring machines, X-ray film thickness meters, and electron microscopes—to enforce rigorous quality management.
| Address | 661 Arimoto, Wakayama City, Wakayama Prefecture, Japan |
|---|---|
| Phone (Japan domestic only) | 073-431-6311 |
Showa Sangyo provides a detailed schedule of lead times for its range of products—including through-hole and resin-embedded boards—making pre-order estimates easier. They refer to their equipment as “partners” and maintain them rigorously to ensure quality and safety.
| Address | 1624-1 Oguchi-cho, Matsusaka City, Mie Prefecture, Japan |
|---|---|
| Phone (Japan domestic only) | 0598-52-1855 |
Kyoei Sangyo supports all board structures—from single-sided and double-sided FPCs to rigid-flex boards that combine rigid boards with FPCs. With options for white or black coverlay and various surface treatments, the appearance and functionality of the products can be optimized.
| Address | Shinagawa Seaside Canal Tower, 4-12-6 Higashi-Shinagawa, Shinagawa-ku, Tokyo |
|---|---|
| Phone (Japan domestic only) | 03-4241-5511 |
Leveraging its extensive overseas network, FESE provides contract manufacturing for PCBs. Their multifaceted support in board procurement—including optimal factory selection, price negotiations, and local inspections—enables them to handle everything from prototyping to mass production on a single platform.
| Address | 2-507 Shiogamaguchi, Tempaku-ku, Nagoya, Aichi, Japan |
|---|---|
| Phone (Japan domestic only) | 052-837-0095 |
They support a wide range of services from PCB prototyping to mass production. By using a cutting method that does not rely on external dies, they help reduce development costs and aim to supply products more quickly, cheaply, and accurately than those dependent on molds.
| Address | 6353-20 Minamiminowa Village, Kamiina District, Nagano Prefecture, Japan |
|---|---|
| Phone (Japan domestic only) | 0265-77-1160 |
Yunika handles circuit design and analog/digital design as well as mechanical and enclosure design on a turnkey basis. By procuring only the essential components, they minimize waste and can source materials from authorized domestic and overseas dealers, along with providing sales and import/export support.
| Address | 2-5-13 Imaizumidai, Hadano-shi, Kanagawa, Japan |
|---|---|
| Phone (Japan domestic only) | 0463-84-7327 |
Specializing in small-lot prototypes, P-By Dot Com performs outline processing using wood dies and laser cutting—without creating molds. With a strong track record in high-spec flexible PCBs and special FPCs, they even offer an option that allows for shipment in as little as one day from production start.
| Address | 4F, Gobancho Hikari Bldg, 14 Gobancho, Chiyoda-ku, Tokyo, Japan |
|---|---|
| Phone (Japan domestic only) | 0120-439-296 |
Utilizing its expertise as a trading company, TA Chemical undertakes contract manufacturing of both rigid and flexible PCBs. They can handle orders ranging from small-lot prototypes to mass production, including single-layer and double-sided structures, outsourced component mounting, and rework services.
| Address | 4F Kamiyoshi Building, 2-3-15 Koraibashi, Chuo-ku, Osaka, Japan |
|---|---|
| Phone (Japan domestic only) | 06-4707-2575 |
Shiima Electronics offers a one-stop solution from material procurement to module assembly. With a collaborative system among manufacturers, they provide integrated solutions from component mounting to module assembly, and are capable of custom manufacturing in partnership with equipment makers.
| Address | Teika Building, 2-82 Hanasaki-cho, Naka-ku, Yokohama, Kanagawa, Japan |
|---|---|
| Phone (Japan domestic only) | 045-260-1530 |
As a subsidiary of Toray Engineering's 100%*, we manufacture flexible substrates and process large and precision components. Flexible substrates are manufactured using polyimide etching technology.
*Reference: TRENG F Products Corporation official website/History(https://www.treng-f-products.co.jp/aboutus/history.html)
| Address | 6th Floor, Yaesu Ryumeikan Building, 1-3-22 Yaesu, Chuo-ku, Tokyo |
|---|---|
| Phone (Japan domestic only) | 03-6262-7875 |
Sakura Denshi is a company that specializes in the design and manufacture of printed circuit boards. Even in the production of flexible circuit boards, the company can respond to the specifications of the client company. We can deliver prototypes in as little as two days, making us a very flexible company.
| Address | 4 Nishinosato, Okimura, Kitanagoya, Aichi, Japan |
|---|---|
| Phone (Japan domestic only) | 0568-25-4811 |
Molex (Molex Japan, LLC) is the Japanese subsidiary of Molex, headquartered in the United States. The company offers three types of flexible printed circuit boards as interconnect solutions. The company's strength lies in its attentive and problem-solving attitude.
| Address | 1-5-4, Fukami Higashi, Yamato-shi, Kanagawa |
|---|---|
| Phone (Japan domestic only) | 046-265-2428 |
Foresight is a company that handles FPD components and glass processing. The company has an extensive track record in supplying flexible printed circuit boards to domestic automakers, and has acquired a quality management system to provide products in accordance with customer requirements.
| Address | 4F Yuwa Building, 3-5-2 Otsuka, Bunkyo-ku, Tokyo |
|---|---|
| Phone (Japan domestic only) | 03-6808-7731 |
Stay Electronic Equipment Co., Ltd. handles everything from the design of flexible printed circuit boards to manufacturing and sales, and offers products based on its external processing technology, which is based on more than 40 years of experience. The company's FPCs are used in medical, measuring, and communication equipment.
| Address | 3-13-11 Miyashita, Chuo-ku, Sagamihara-shi, Kanagawa |
|---|---|
| Phone (Japan domestic only) | 042-774-4555 |
Kawasaka Process Co., Ltd. is a company that focuses on board design, manufacturing and sales, and can handle a wide range of design work, including CAD Gerber data creation, film drawing, and CAM editing.
| Address | 4-13-6 Minami Terakata Higashidori, Moriguchi-shi, Osaka |
|---|---|
| Phone (Japan domestic only) | 06-6991-5859 |
We are a one-stop shop for flexible circuit board design, development, prototyping, mounting, manufacturing, and sales. Depending on customer needs, the company flexibly responds to design only, short lead-time prototyping, and mass production.
| Address | 3492-23 Arai, Ina City, Nagano Prefecture |
|---|---|
| Phone (Japan domestic only) | 0265-73-7679 |
Tanaka Giken Ltd. specializes in small and thin flexible printed circuit boards (FPCs) and provides one-stop integrated services from design and prototyping to mounting and manufacturing. We offer design proposals that meet customer needs and take total cost into consideration, and handle everything from prototyping to mass production.
| Address | 2-53-3 Komatsubara, Zama City, Kanagawa Prefecture |
|---|---|
| Phone (Japan domestic only) | 046-254-4988 |
Nisun Corporation specializes in the design of flexible printed circuit boards (FPCs) and metal substrates, and handles a series of processes from prototyping to mass production. We have established a manufacturing system based on certain quality standards, as manufacturing is performed at eight factories in China.
| Address | Kyoto Ekimae No.7 Building 6F, 499 Zaimoku-cho, Shichijo Higashi-iru, Shimogyo-ku, Kyoto-shi, Kyoto |
|---|---|
| Phone (Japan domestic only) | 075-365-3305 |
Towa Tech, Inc. is a company that designs and manufactures printed circuit boards and provides outsourcing services. In cooperation with domestic and overseas bases and subcontractors, the company designs and implements circuit boards in accordance with customer requirements. Cost consultation is easy, and quotation requests can be made on the official website.
| Address | 1005-8 Morishita, Iwata City, Shizuoka Prefecture |
|---|---|
| Phone (Japan domestic only) | (Printed Circuit Board Center) 0538-67-1270 |
Hokuyo Electronics Co., Ltd. is a company that mounts printed circuit boards, semiconductor components, and other electronics products, as well as wiring and assembling enclosures. The company handles mounting of one small board and one large board, mass production and high-mix low-volume production. For corporate members, the company offers NET FELLOW, a proprietary system for checking progress and inventory.
| Address | Shinjuku Square Tower 29F, 6-22-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo |
|---|---|
| Phone (Japan domestic only) | 03-3343-9613 |
Under our integrated in-house production system, we manufacture flexible printed circuit boards, from prototypes to mass production, for both individual parts and sheets. We have obtained ISO 9001 certification, been designated as a UL-certified factory, and have established a quality control system that includes 100% visual external inspection and 100% continuity testing.
| Address | 2775 Utsue, Kokufu-cho, Takayama City, Gifu Prefecture |
|---|---|
| Phone (Japan domestic only) | 0577-72-3921 |
Flexible PCBs (FPCs) are circuit boards formed on insulated plastic films. This section introduces the fundamentals of Flexible PCBs, their history, and how they differ from other board types.
Flexible PCBs (FPCs) are typically composed of three primary layers, and there is a wide variety of structural configurations. This section explains the construction of Flexible PCBs and the differences among common configurations.
Flexible PCBs are widely used in devices such as smartphones and computers. What are the two main characteristics that make flexible PCBs essential in modern electronics?
The world of Flexible PCBs (FPCs) involves many specialized terms. This page explains commonly searched terms related to FPC materials and manufacturing processes—useful for readers who are new to Flexible PCBs.
3-layer FPC materials are flexible copper-clad laminates in which the base film and copper foil are bonded with adhesive. 2-layer FPC materials achieve the same integration without adhesive (adhesive-less). This section introduces three primary methods used to integrate the base film and copper foil in 2-layer FPC materials.
Etching is a core patterning process in Flexible PCB manufacturing. This section explains the process steps, types of etching, key considerations, and important technical points relevant to production.
The coverlay plays a vital role in protecting circuits to ensure proper functioning of flexible PCBs (FPCs). Here, we explore the different types of coverlay materials and how to choose the right one.
Copper foil is a key material used in the production of flexible PCBs. In this section, we explain the types and characteristics of copper foils commonly used in FPC manufacturing.
Flexible PCBs can be manufactured using several methods, including the subtractive process and the semi-additive process. Understanding the pros and cons of each method is essential when discussing requirements with your manufacturer.
Plating is important for both conductivity and circuit protection in flexible PCBs. This section introduces various plating methods and explains the differences between each type.
Explains the differences between polyimide, liquid crystal polymers, and other films used as substrate materials for flexible printed circuit boards (FPCs). It is important to understand the advantages and disadvantages of each material and to select the material.
Mounting refers to the process of attaching components to a manufactured PCB. There is a significant difference between mounting on standard PCBs and flexible PCBs, due to the unique properties of FPCs. It's important to understand these differences before outsourcing assembly.
Flexible printed circuits (FPCs) can be broadly categorized into three main types: single-/double-sided, rigid-flex, and multilayer flexible PCBs. This section outlines the primary types of FPCs and their basic characteristics.
These designs are relatively simple in structure. This section outlines their advantages and disadvantages.
These combine rigid boards with Flexible PCBs, leveraging the strengths of both. We highlight the unique structure of rigid-flex and recommend typical application areas.
Built by stacking single- or double-sided flexible circuits to form three or more conductive layers. This section explains how multilayer FPCs differ from simpler constructions and where they are most effective.
Flexible PCBs (FPCs) are available in multiple configurations—single-/double-sided, multilayer, and rigid-flex. This section explains how to select Flexible PCBs for common use cases and highlights key points to review for each application.

Automotive applications have distinct selection requirements. When choosing Flexible PCBs for vehicles, it is important to confirm whether they meet the specified criteria for automotive use. This section provides an overview of those criteria.

For certain equipment, device reliability can be directly linked to patient safety. This section outlines how to select Flexible PCBs for medical applications and introduces recommended FPC types for medical use.

Flexible PCBs play an essential role in digital cameras and smartphone camera modules. Because camera systems demand miniaturization and higher performance, selecting an appropriate FPC is increasingly important. This section explains selection considerations and key characteristics for camera-focused applications.

Smartphones integrate many components, and Flexible PCBs are a critical part of the internal architecture. This section introduces recommended FPC features for smartphones and FPC types commonly selected for mobile devices.
When sourcing high-precision flexible PCBs, one of the most common challenges is dealing with issues such as poor contact or connection failures. In this feature, we highlight frequent trouble cases and share key tips to help you avoid them. We also interview professionals from one of Japan’s leading manufacturers of high-precision flexible PCBs. If your company is currently exploring new flexible PCB suppliers, this is a must-read.
View Common Flexible PCB Issues and Recommended Manufacturers (Sponsored)