Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6141960 | Exhaust gas purifying system for engine | Akihide Takami, Hideharu Iwakuni, Makoto Kyogoku, Hiroshi Yamada, Kenji Okamoto +5 more | 2000-11-07 |
| 5950419 | Method of and system for purifying exhaust gas for engines | Hirofumi Nishimura, Ken Umehara, Takanobu Morimasa, Masanori Misumi | 1999-09-14 |
| 5501074 | Exhaust gas purifying system | Hajime Suetsugu, Akihide Takami, Takashi Takemoto | 1996-03-26 |
| 4787357 | Intake system for an internal combustion engine | Toshio Nishikawa, Makoto Hotate, Tadashi Kaneko | 1988-11-29 |
| 4763629 | Air-fuel ratio control system for engine | Katsumi Okazaki, Katsuhiko Yokooku, Tomomi Watanabe, Kiyotaka Mamiya | 1988-08-16 |
| 4691677 | Throttle valve control system for internal combustion engine | Makoto Hotate, Toshio Nishikawa, Kobuo Takeuchi, Itaru Okuno | 1987-09-08 |
| 4682044 | Engine idling load control means | Makoto Hotate, Tadashi Kaneko, Toshio Nishikawa, Nobuo Takeuchi | 1987-07-21 |
| 4669439 | Air-to-fuel ratio control systems for internal combustion engines | Kiyotaka Mamiya, Toshiyuki Terashita, Katsumi Okazaki | 1987-06-02 |
| 4561404 | Fuel injection system for an engine | Yoshiaki Kanno | 1985-12-31 |
| 4532905 | Fuel injection control system for controlling the fuel distribution to the cylinders of a multi-cylinder internal combustion engine | Katsuhiko Yokooku, Tadashi Kaneko | 1985-08-06 |
| 4508078 | Electrically operated engine throttle valve actuating device | Nobuo Takeuchi, Tadashi Kaneko, Katsuhiko Yokooku | 1985-04-02 |
| 4215540 | Exhaust gas purifying apparatus for automobile multi-cylinder engine | Kazuo Kobayashi, Tatsuro Oda, Kazuyuki Tanaka | 1980-08-05 |
| 4215541 | Dual-catalyst exhaust gas purifying apparatus for multi-cylinder engine | Kazuyuki Tanaka, Kazuo Kobayashi, Tatsuro Oda | 1980-08-05 |
| 4215542 | Exhaust gas purifying apparatus for automobile multi-cylinder engine | Kazuo Kobayashi, Tatsuro Oda, Kazuyuki Tanaka | 1980-08-05 |