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Latest update: 26/02/2020 10:25:07

Kouzan Denki Kougyou Co., Ltd.

We possess JAXA-endorsed technology and equipment in the electronic component field.

We are an electronic component and device manufacturer founded in 1946. We mainly develop and design transformers, coils, and hybrid ICs. We also manufacture and sell SAW filters, which are commercialized as VHF-band and UHF-band filters, and COB assemblies, in which IC chips are mounted and wire-bonded on printed circuit boards. We do business with companies like NEC Network Products, Nippon Signal, and Azbil. The Japanese Aerospace Exploration Agency (JAXA) has expressed its confidence in our technology and equipment by certifying us to assemble aerospace-grade electronic components.


Sales Pitch

HIC supporting bear chip mounting
High-mix low-volume production
Our company handles aerospace-related products. We are also proceeding with efforts for quality household products.
We can design and assemble products except control IC for TAG assembly.

Other presentation

[Company strength]
We have been producing transformers and coils since our company’s establishment. We have been accumulating advanced technology for many years for the production of many kinds of products. These include hybrid ICs, automotive ignitors, clock modules, optical-related modules, and ICs for aerospace applications. We also mount, wire-bond, seal, inspect, tape, and deliver ICs provided from clients in wafer or tray form. We have earned the trust of NEC and other customers, and we are confident we can outperform any other company. The strength of our company, along with our technology, is our lineup of equipment to support our production. This includes four wafer cutting machines, six IC mounting machines, 29 wire bonders, nine quality assurance stations (for heat cycling and burn-in), and three component mounting lines. We also possess more than 20 other pieces of production equipment.

[Business description]
Our company has been developing, designing, manufacturing, and selling transformers and coils as well as hybrid integrated circuits (hybrid ICs) in the 70 years since our foundation in 1946. We also manufacture component modules, including SAW filters (commercialized as VHF-band and UHF-band filters) and COB (chip-on-board) assemblies (IC chips mounted and wire-bonded on printed circuit boards). Our company is involved in manufacturing optical interface components, such as optical interfaces and optical-related modules that have come into widespread use in communications lines in recent years.

Electronic component and device manufacturing 

[Strength of products/technologies]
We have the capacity for in-house development of the products that we handle, with design divisions for the transformers, coils, and controllers listed here. Other strengths include our ability to provide miniaturized products and products that feature easy maintenance. This is done by making use of today’s hybrid ICs, and our high reliability, including our technology and production equipment. This led to our certification by the Japanese Aerospace Exploration Agency (JAXA) to assemble aerospace-spec electronic components.

[Representative's message]
Our company began in 1946 as a partner production plant of NEC, manufacturing electronic devices, and especially transformers, coils, and hybrid ICs. We rely on our wealth of experience and expertise gained through manufacturing electronic devices to supply high-quality products. Our aim is to provide products that satisfy a wide range of manufacturers, including our past clients. We have also set our sights on entering other business domains and business fields, such as business areas related to aerospace.

[Company structure for market development/overseas expansion]
We have placed engineers (chief engineers) in our sales division to handle technical inquiries and proposals (technology development). We have also constructed a special system for handling made-to-order products and to cultivate sales channels in new business fields.

[Awards and media coverage]
Awards from the Minister of Health, Labour and Welfare and from the Governor of Gunma Prefecture for occupational health and safety and for traffic safety (1991, 2005, 2009, 2012, 2014); NEC Network Products, letter of appreciation for contributions to business operations (2014).


Acquired ISO 9001 and ISO 14001 certification.
Registered radio station inspection business (88A012).
Licensed building contractor (Han-26 Dai-19480, Gunma Prefecture).

[Main Clients / Business History (domestic)]
NEC Network Products, Ltd.: hybrid ICs and high-frequency coils for microwave radio equipment; Nippon Signal Co., Ltd.: traffic-control equipment assemblies, transformers, and coils; Azbil Corporation: sensors for machine tools; HIREC Corporation: MPUs for aerospace applications.

This company is recommended by the following support organizations.

Kanto Head Office, SMRJ

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