FJ Composites was established in 2002 as a venture company specializing in the manufacturing of electronic materials using composite materials. Since then, we have successfully handled a wide range of materials, including metals, carbon, ceramics, and resins, using our unique technology to manufacture a diverse array of composite materials.
For over 20 years, we have been dedicated to contributing to an eco-friendly and sustainable world through our innovative products.


FJ Composite was established on February 5, 2002, in Fuji City, Shizuoka Prefecture, Japan.

Our goal is to apply composite material products to the electronics and semiconductor markets, where Japan excels.
To survive in a market where we are competing with major companies, we develop proprietary technologies and manufacture products that excel in both performance and price.

In 2015, we built our factory in Chitose City, Hokkaido, and moved to this new location.
A second plant was completed in 2019, and a third plant in 2022 adjacent to the first. The number of employees has increased from 5 at the time of the relocation to over 30. (As of January 2023)

Our products are used in next-generation products such as electrical components for electric vehicles (EVs) and fuel cell vehicles (FCVs), electrode materials for large storage batteries, and heat sinks for 5G communication devices.
More than 80% of our shipments are to overseas customers.

We are able to fulfil our dream of establishing a world-class business in our hometown of Hokkaido and contributing to the local community.
We will continue to challenge new technologies, and create products that will open up a new era for our company.
We look forward to your continued support.

Eiki Tsushima, Representative Director

Eiki Tsushima, Representative Director

About FJ Composite

Gathering of Only One and Number One Technology

From word-of-mouth to all over the world

FJ Composite does not have a sales department or sales quota as a management policy.
Our sales style is to listen to our customers’ problems and wishes and solve them, rather than to sell to them, and we have expanded our recognition in the industry only by word-of-mouth.
Today, we manufacture products that are indispensable for cutting-edge technologies, such as telecommunications equipment and electric vehicles, and our overseas sales now account for 80% of our total sales.

About FJ Composite

Offering technologies that have been refined for more than 20 years.

FJ Composite’s strength lies in our ability to create “new technology” by connecting the technologies we have been developing for over 20 years.
Solving problems is not always easy, but if you have any “problems or wants”, contact us first.
We have many products and technologies that are not listed on our website. Please let us help you solve your problems.
We look forward to working together to create the world through technology.

About FJ Composite

Corporate Philosophy

Be Gentleman

These are the words of Dr Clark, the founder of Hokkaido University.
“Boys, be ambitious!” may be a more famous saying, but when the Sapporo Agricultural College (now Hokkaido University) was about to establish its school regulations, the school’s president said, “There is no need for school rules; a single phrase, ‘Be Gentleman,’ is sufficient.
I believe the world will be richer with free ideas if everyone is a gentleman daily, even though rules and punishments are becoming stricter and stricter in today’s society.

Sales that listen to and solve customers’ problems and wishes

We do not have a large sales department, nor do we have a sales quota.
We have a technical sales style of “making what the customer wants,” so we have many products and technologies that are not disclosed on our website.
Based on the belief that if you make good products, demand will naturally gather, we have been passionately manufacturing products for more than 20 years since our establishment and have increased our recognition in the industry by word of mouth.

Supplier First

We place great importance on respecting our subcontractors.
Often our suppliers tend to be subcontractors, but we hope for the development of the industry as a whole by realizing a mutually beneficial relationship.


Establishment February 5, 2002 (F.J. Composite Co., Ltd.)
Converted to a Joint-Stock Company on August 20, 2004
Capital 30 million yen
Representative Eiki Tsushima, Representative Director
Business Details Development, manufacturing and sales of various composite materials
Location 【Head Office, 1st Plant, 2nd Plant, 3rd Plant
2-2-3, Kashiwadai-minami, Chitose-shi, Hokkaido, 066-0009, Japan
【USA Branch Office】
9655 Granite Ridge Drive, Suite 200 SanDiego, CA, 92123, USA
Contact TEL: 0123-29-7034
fax: 0123-29-7035


Head Office / 1st Plant, 2nd Plant, 3rd Plant

Location 2-2-3, Kashiwadai-minami, Chitose-shi, Hokkaido, 066-0009
Contact TEL: 0123-29-7034
FAX: 0123-29-7035
Access 10 min. walk from Minami Chitose Station on JR Chitose Line
10 minutes by taxi from New Chitose Airport (approx. 1,500 yen)
About Chitose City, Hokkaido

Chitose City, where FJ Composite is, is situated at the southern end of the Ishikari Plain in south-central Hokkaido and is home to New Chitose Airport, the gateway to the skies of Hokkaido. With well-developed railroads and highways, the city is easily accessible from all parts of Japan and Hokkaido.
Lake Shikotsu, a beautiful blue lake, is located in the western part of the city, where visitors can enjoy activities such as hot springs, camping, and diving. Along the Chitose River, which flows out of Lake Shikotsu, there is one of the largest freshwater fish aquariums in Japan, “Chitose Aquarium, Home of Salmon”, where you can watch salmon migrating up the Chitose River. In the eastern part of the city, there is a peaceful rural landscape with farms and ranches where visitors can experience various activities.
The annual snowfall is about half that of Sapporo. In the urban area, there are outlet malls, commercial facilities, and many restaurants, so you will never feel inconvenienced. It is an easy town to live in, where you can enjoy nature while living conveniently.

Shikotu Lake Campground
Meisui Fureai Park
Salmon at Chitose Aquarium
Lake Shikotsu Hyoto Festival

USA Branch Office

Location 9655 Granite Ridge Drive, Suite 200 SanDiego, CA, 92123, USA
Contact TEL: 310-956-5357
Email: (Person in Charge: Oshima)


  • ISO 9001 [Certificate No.: JQA-QMA16308]
  • Certified under the Law for the Promotion of Creative Activities of Small and Medium Enterprises [Ministry of Economy, Trade and Industry].
  • Designation based on Chitose City Industrial Promotion Ordinance [Chitose City].
  • Management Power Improvement Plan [Ministry of Economy, Trade and Industry].
  • Enterprise Location Plan for the Transformation of Hokkaido’s Economic Structure [Hokkaido].
  • Advancement of basic technology for small and medium-sized enterprises (ceramic insulated circuit boards) [Ministry of Economy, Trade and Industry].
  • Advancement of basic technology for small and medium-sized enterprises (LED heat-dissipating materials) [Ministry of Economy, Trade and Industry].
  • Advancement of basic technology by small and medium-sized enterprises (fuel cell separators) [Ministry of Economy, Trade and Industry]
  • Advanced substrate technology for small and medium-sized enterprises (RFB separators) [Ministry of Economy, Trade and Industry
  • Regional future driving companies [Ministry of Economy, Trade and Industry].
ISO 9001 and Certificate of Regional Future Driving Company


2022 20th Anniversary of establishment
【Mass Production】Start of S-CMC mass production
【Development】Development and automation of RFB separators
【Development】Development of molding technology for fuel cell separators (Environmental [Energy] Technology/Product Development Support Project)
【3rd Plant】Commencement of operation of Plant No. 3
2019 【2rd Plant】Commencement of operation of Plant No. 2
2018 【Development】Research and Development on separators (Accepted from NEDO)
【Certification】Certified by the Minister of Economy, Trade and Industry as a “Regional Future Leading Company”
2017 【US Branch】Established US Branch office
【Award】Received the “Minister of Education, Culture, Sports, Science and Technology Award” at the Hokkaido Regional Invention Awards
2016 【Award】Received the “Monodzukuri Japan Grand Award Special Award” from the Ministry of Economy, Trade and Industry
【Award】Received the “Special Award” from the Minister of Economy, Trade and Industry
2015 【Development】Development of DBC substrates for IGBTs (Supported by the Hokuyo Bank, Ltd. Small and Medium Enterprise Support Foundation)
2014 【Relocation ②】Construction of a new factory in Chitose City and complete relocation.
【Award】Received the “Chubu Science and Technology Center Promotion Award” from the Chubu Science and Technology Center Foundation (Product: S-CMC).
【Award】Received the “26th Outstanding New Technology: New Product Award Grand Prize” for Small and Medium Enterprises from the Resona Foundation for Small and Medium Enterprise Promotion (Product: S-CMC)
2012 【Development】Development of cooling substrates for IGBTs
2008 【Relocation ①】Acquired a factory site in Chitose City, Hokkaido
2006 【Corporate】Reorganized as FJ Composite Co., Ltd. through capital increase
【Development】Development of separators for fuel cells (Strategic Foundation Technology Advancement Support Project)
2002 【Incorporation】Established FJ Composite Co., Ltd. in Fuji City, Shizuoka Prefecture

Sustainability Activities

The end goal of our sustainability activities for society is to ensure that our products are widely used throughout the world.
This is not the result of a profit-driven approach, but rather the outcome of more than 20 years of sustainability-oriented product development.

We firmly believe that the highly functional and eco-friendly products created by FJ Composite is crucial in addressing today’s environmental issues, such as global energy consumption and limited resources. To make our products available to as many customers as possible, we are committed to the following organizational goals..

Image of Sustainability Activities

FJ Composite considers environmental preservation to be one of the most critical management issue.
Through ecological manufacturing, we are committed to contributing to a prosperous future for society and local communities.

  1. We have established an environmental management system and targets, and all employees work together to continuously improve our environmental activities.
  2. We will voluntarily make improvements in response to requirements for environmental preservation and laws and regulations.
  3. We will strive to protect the environment in our business activities, and will work to prevent environmental pollution, conserve resources and energy, and reduce waste.
  4. We will make our environmental policy known to all employees, actively disclose information, and strive to be in harmony with society.