About Us

Kohoku Kogyo is a leading company
of lead terminals for aluminum electrolytic capacitors
and optical components and devices.

Kohoku Kogyo’s lead terminals for aluminum electrolytic capacitors are used in a variety of electronic devices.

Aluminum electrolytic capacitors are expanding the new application fields utilizing more and more electric devices like automobiles (CASE), communication (5G), industrial equipment (robotization) and so on.

Kohoku Kogyo has fulfilled various demands by utilizing self-designed production facilities and longtime know-hows. Annual production throughput reaches over 40 billion pcs., to achieve the world’s top share.

Lead terminals for aluminum electrolytic capacitors

Integrating our technology into this small lead terminal, we contribute to the advancement of electronics products and technological innovation.

Optical components and devices of Kohoku Kogyo are widely used in the fiber-optic communication network to connect the world.

As various information devices such as smartphones and IoT devices have been spreading all over the world, demands for fiber-optic communication have been growing explosively.

Optical fiber network has become indispensable social infrastructure supporting the increasing communication traffic.

Optical components and devices of Kohoku Kogyo in this fiber-optic communication network, especially in undersea cables which require specially high reliability, are supporting lives and business all over the world.

Inline Optical Isolator

Based on the unique manufacturing method by our own technology, we manufacture and market the optical components for the optical fiber communication network.

Optical components and devices of Kohoku Kogyo are widely used in the network that connects the world.

Keywords for understanding Kohoku Kogyo

Founded: 1959

Countries & Fascilities: 6
Countries; 8
Fascilities

Employees As of the end of December 2023: Non-consolidated
166
persons; Consolidated
1,430
persons

Lead Terminals for Aluminum Electrolytic Capacitors: World share
Approx. Over 60%; Annual
Production Volume
Over 500 Billion pcs.

Optical Isolators for submarine cables: World share
Approx. Over 50%

Number of Patents and Designs Granted As of the end of December 2023: 138 Patents; 20 Designs

International Standard Certification: ISO9001; ISO14001; IATF16949

Awards: 100 Top Global Niche Companies
(Ministry of Economy, Trade and Industry, 2020); The Driving Company for the regional future
(Ministry of Economy, Trade and Industry, 2017); Award for low-carbon society creation
in Shiga Prefecture
(Shiga Prefecture, 2016); Award for Excellent New Technologies
and Products by Small and Medium Enterprises
Prize of Smaller Enterprise Agency’s Director
(Nikkan Kogyo Shimbun, Ltd., 2013); The 300 strongest small-medium sized enterprises
(Ministry of Economy, Trade and Industry, 2006); and so on

The world share of lead terminals for aluminum electrolytic capacitors has been estimated from the world’s production volume of aluminum electrolytic capacitors measured by a statistical research institution and our company’s production records.

Company Information Brochure

Information Brochure of Kohoku Kogyo (PDF)

Japanese (日本語) (4.8MB) English (4.2MB)