Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5023792 | System and method for controlling vehicle speed to cruise at desired speed for vehicle | — | 1991-06-11 |
| 4676209 | Transfer passage arrangement for diesel engine having swirl chamber | Yukihiro Etoh, Kunihiko Sugihara, Toshiaki Tanaka, Yoshihisa Kawamura | 1987-06-30 |
| 4662330 | Diesel engine having swirl chamber and shaped flame dispersing recess in piston crown | Kunihiko Sugihara, Yukihiro Etoh, Toshiaki Tanaka, Yoshihisa Kawamura | 1987-05-05 |
| 4517134 | Variable venturi carburetor | Ken Nakamura, Tadashi Nagai, Yutaka Matayoshi, Eiichi Ohnishi, Junichi Yokoyama +1 more | 1985-05-14 |
| 4489014 | Variable venturi carburetor | Tadashi Nagai, Eiichi Ohnishi, Yutaka Matayoshi | 1984-12-18 |
| 4452217 | Exhaust gas recirculation control system for a diesel engine and control method therefor | Yoshihisa Kawamura, Toyoaki Nakagawa, Masao Nakajima | 1984-06-05 |
| 4446840 | Exhaust gas recirculation control system for internal combustion engine | Toyoaki Nakagawa, Masao Nakajima, Yoshihisa Kawamura | 1984-05-08 |
| 4391247 | Air flow detection arrangement | Yoshitaka Hata, Masao Nakajima | 1983-07-05 |
| 4376428 | Spark timing control system for internal combustion engine | Yoshitaka Hata | 1983-03-15 |
| 4289108 | Exhaust gas recirculation rate control device | — | 1981-09-15 |