Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4781653 | Power transmission device for motor vehicle | Koyo Nakamura, Kenji Okamura, Yoshiji Shimaoka | 1988-11-01 |
| 4676209 | Transfer passage arrangement for diesel engine having swirl chamber | Kunihiko Sugihara, Giichi Shioyama, Toshiaki Tanaka, Yoshihisa Kawamura | 1987-06-30 |
| 4662330 | Diesel engine having swirl chamber and shaped flame dispersing recess in piston crown | Giichi Shioyama, Kunihiko Sugihara, Toshiaki Tanaka, Yoshihisa Kawamura | 1987-05-05 |
| 4557230 | Swirl chamber for internal combustion engine | Toshiaki Tanaka, Nobukazu Kanesaki, Hiroaki Miyazaki | 1985-12-10 |
| 4531491 | Fuel injection rate control system for an internal combustion engine | Akihiro Iiyama, Hiroaki Miyazaki, Toshiaki Tanaka | 1985-07-30 |
| 4530324 | Fuel injection pump for an internal combustion engine | Toshiaki Tanaka, Hiroaki Miyazaki, Nobukazu Kanesaki, Akihiro Iijima | 1985-07-23 |
| 4436060 | Engine cooling system | Toshiaki Tanaka, Shoji Ushimura | 1984-03-13 |
| 4385600 | Split type internal combustion engine | Fukashi Sugasawa, Haruhiko Iizuka, Toshiaki Tanaka | 1983-05-31 |
| 4348994 | Internal combustion engine | Toshiaki Tanaka | 1982-09-14 |
| 4344393 | Internal combustion engine | Toshiaki Tanaka, Fukashi Sugasawa, Haruhiko Iizuka | 1982-08-17 |
| 4337740 | Internal combustion engine | Fukashi Sugasawa, Haruhiko Iizuka, Toshiaki Tanaka | 1982-07-06 |
| 4335687 | Internal combustion engine | Fukashi Sugasawa, Haruhiko Iizuka, Toshiaki Tanaka | 1982-06-22 |
| 4333428 | Internal combustion engine | Toshiaki Tanaka | 1982-06-08 |
| 4320726 | Internal combustion engine | Toshiaki Tanaka | 1982-03-23 |
| 4304208 | Internal combustion engine | Toshiaki Tanaka | 1981-12-08 |
| 4303053 | Split mode internal combustion engine with improved NO.sub.x reduction means | Toshiaki Tanaka, Haruo Yonezawa, Yoshikatsu Sakamoto | 1981-12-01 |
| 4292938 | Internal combustion engine | Toshiaki Tanaka | 1981-10-06 |
| 4271795 | Internal combustion engine with dual induction system and with fuel injection system to discharge fuel into secondary induction system | Yasuhiko Nakagawa, Meroji Nakai, Ryoji Nakajima | 1981-06-09 |
| 4270500 | Internal combustion engine with dual induction system | Yasuhiko Nakagawa, Meroji Nakai, Ryoji Nakajima | 1981-06-02 |
| 4257372 | Internal combustion engine exhaust passage structure | Toshiaki Tanaka, Kazuya Kunii | 1981-03-24 |
| 4256074 | Control system for closed loop mixture correction and split engine operation | Fukashi Sugasawa | 1981-03-17 |
| 4249374 | Split engine control system with exhaust gas recirculation | Fukashi Sugasawa, Haruhiko Iizuka, Junichiro Matsumoto | 1981-02-10 |
| 4246874 | Internal combustion engine with dual induction system and with fuel injection system to discharge fuel into primary induction system | Yasuhiko Nakagawa, Meroji Nakai, Ryoji Nakajima | 1981-01-27 |
| 4224920 | Split engine operation with means for discriminating false indication of engine load reduction | Fukashi Sugasawa, Haruhiko Iizuka, Junichiro Matsumoto | 1980-09-30 |
| 4201165 | Internal combustion engine with dual induction system and with EGR system | Toshiaki Tanaka | 1980-05-06 |