Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4590414 | Battery voltage regulation system | Nobuo Mayumi, Hajime Matsuhashi | 1986-05-20 |
| 4555657 | Voltage regulator for alternator of vehicle | Toshinori Maruyama, Hajime Matsuhashi, Yoshio Akita | 1985-11-26 |
| 4525662 | Battery charging control system for automobile | Takeshi Sada, Nobuo Mayumi, Hajime Matsuhashi | 1985-06-25 |
| 4288728 | Electric vehicle control apparatus | Masayoshi Niimi, Koshi Torii | 1981-09-08 |
| 4217015 | Cathode ray tube and a ventilator used in its baking process | Shigeo Matsumoto, Koichi Tago | 1980-08-12 |