Kohoku Kogyo Co., Ltd. engages in the manufacture and sale of lead terminals. It also provides optical components and devices for optical fiber communication network. It operates through the Lead Terminal and Optical Component and Devices segments. The Lead Terminal segment deals with the manufacture and sale of lead terminals for aluminum electrolytic capacitors. The Optical Component and Devices segment offers optical communication parts. The company was founded on August 8, 1959 and is headquartered in Nagahama, Japan.