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Company Profile

We strive to become more environment-friendly, to become an enterprise worthy of ever-greater trust by our customers.

Since its foundation, Tamagawa Seiki has taken up the challenge of angular precision for control equipment, such as high-precision sensors, motors and gyros, and successfully delivered such equipment to its customers.
We are now one of the few makers in the world with the capability to develop and manufacture both two-dimensional and three-dimensional (spatial) position/angle sensors.
We have applied leading-edge high-precision sensor technology to our "Motion System,"whose fields of application are extending even to the space industry.

Establishment March3, 1938
Capitalization ¥100 million
Board of Directors CEO & Chairman : Hiroyuki Hagimoto (D. Eng.)
COO & President : Shigeo Seki
Executive Director : Hiroshi Hagimoto
Executive Director : Hideo Kumagai (D. Eng.)
Executive Director : Masashi Uryu
Executive Director : Mamoru Tsukadaira
Director : Tadanori Matsuo
Director : Hiroshi Kushihara
Director : Kazuyuki Miyazawa
Auditor : Toshiaki Ito
Number of employees 750
Address of head office and first plant 1879 Ohyasumi, Iida, Nagano Prefecture, 395-8515 Japan
Locations of branch office and plants Tokyo office
3-19-9 Shinkamata, Ohta-ku, Tokyo, 144-0054 Japan
Second Plant
1020 Kega, Iida, Nagano Prefecture, 395-8520 Japan
Third Plant
3174-22 Moto-Ohjima, Matsukawa, Shimoina-gun, Nagano Prefecture, 399-3303 Japan
Hachinohe plant
1-3-47 Kita-inter Kogyo-danchi, Hachinohe, Aomori Prefecture, 039-2245 Japan
Business lines Servo components (encoders, resolvers, rate sensors, gyros, AC servo motors, DC servo motors, step motors, torque motors, alternators, LVDTs, etc.); Motor driver
controllers; Robots; Inertial measuring units; Automatic control devices
Sales ¥38.7 billion(as of November 2017; November 20 is our account settlement date)
Sales company Tamagawa Trading Co., Ltd.
CEO & Chairman : Hiroyuki Hagimoto(D. Eng.)
COO & President :Shigeo Seki
Executive Director : Yasuo Hagimoto
Director : Masahiro Shiozawa
Auditor : Toshiaki Ito
Major clients Mitsubishi Heavy Industries; Kawasaki Heavy Industries; Fuji Heavy Industries; Mitsubishi Electric; NEC; Toshiba; Hitachi; Matsushita Electric Industrial; TOYOTA; HONDA; ABB Automation Technology Products AB;Honeywell Inc.; Rockwell Collins Ministry of Defense ; Japan Aerospace Exploration Agency etc.