- CEO
- Jun Ueno
- Full Time Employees
- 1,231
- Sector
- Producer manufacturing
- Industry
- Industrial machinery
- Address
- 296-1, Matsuhidai Matsudo CH Japan 270-2214
- IPO Date
- Jul 31, 2000
- Business
- SEIKOH GIKEN Co., Ltd. designs, manufactures and sells optical components, precision molds, injection molded parts, radio over fiber products and related equipment primarily for optical communications, automotive, medical and electronics industries in Japan, China, Thailand, Europe and the United States. Founded in 1972 and headquartered in Matsudo, Chiba, Japan, the company offers precision and optical disc molds; injection molded components including automotive parts, electronic parts, medical microfluidic devices and thin-wall molded resin parts; optical communication components such as connectors, ferrules, adaptors, jumper cables, uniboot connectors, attenuators, optical packaging parts, crimping tools and Intelli-Cross Pro connectors; optical manufacturing equipment including polishing machines, interferometers, endface cleaners and field use equipment; lenses; isotropic optical e-field sensor heads, optical probes for malfunction noise and GNSS optical transmission units; as well as X-ray CT scanners and non-destructive testing services. The company operates through precision machinery products and optical products segments, with subsidiaries including Fuji Electronics Industries Co., Ltd., DATA-PIXEL SAS, Seikoh Giken Hangzhou Co., Ltd., SEIKOH GIKEN (THAILAND) Co., Ltd. and recent joint ventures such as Seikoh Elite Photonics Co., Ltd. In recent developments, SEIKOH GIKEN acquired 100% of MG Co., Ltd. in 2024 and integrated it as a consolidated subsidiary; Seikoh Giken Hangzhou established joint venture Seikoh Elite Photonics Co., Ltd. and designated Suzhou Anzhun Intelligent Equipment as an equity method affiliate in 2024; jointly developed in-die painting technology for small parts with Tokai Rika Co., Ltd. resulting in switches adopted for Toyota Motor Corporation's Hiace in 2025, marking Japan's first mass production; and collaborated on 5G-related business and local antenna measurements in 2023.