Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5146885 | Air-fuel ratio control device for an engine | Takao Fukuma, Toshio Takaoka, Hirofumi Yamasaki | 1992-09-15 |
| 5092297 | Air-fuel ratio control device for a vehicle engine | Toshio Takaoka, Takao Fukuma, Hirofumi Yamasaki | 1992-03-03 |
| 5080074 | Air-fuel ratio control device of an internal combustion engine | Toshio Takaoka, Takao Fukuma, Hirofumi Yamasaki | 1992-01-14 |
| 5067465 | Lean burn internal combustion engine | Hirofumi Yamasaki, Kiyoshi Yagi, Toshio Takaoka, Takao Fukuma | 1991-11-26 |
| 5060618 | Method and apparatus for controlling torque variations in an internal combustion engine | Toshio Takaoka, Takao Fukuma, Hirofumi Yamasaki | 1991-10-29 |
| 5058556 | Device for determining activated condition of an oxygen sensor | Takao Fukuma, Toshio Takaoka, Hirofumi Yamasaki | 1991-10-22 |
| 5056491 | Apparatus for controlling an air-fuel ratio in an internal combustion engine | — | 1991-10-15 |
| 4879673 | Method and device for correcting a fuel injection quantity in a diesel engine | Masaomi Nagase, Yoshiyasu Ito, Mikio Kizaki, Kiyotaka Matsuno, Fumiaki Kobayashi | 1989-11-07 |
| 4862853 | Method of controlling individual cylinder fuel injection quantities in electronically controlled diesel engine and device therefor | Masaomi Nagase, Kiyotaka Matsuno | 1989-09-05 |
| 4736726 | Method and system for controlling fuel ignition timing in diesel engine | Kiyotaka Matsuno, Fumiaki Kobayashi, Masaomi Nagase, Yoshiyasu Itou, Mikio Kizaki | 1988-04-12 |
| 4726345 | Method and device for controlling energization of high pressure electromagnetic valve | Nagase Masaomi, Fumiaki Kobayashi, Kiyotaka Matsuno, Yoshiyasu Ito | 1988-02-23 |
| 4643154 | Method of and device for controlling fuel injection timing in diesel engine | Kiyotaka Matsuno, Masaomi Nagase | 1987-02-17 |
| 4590907 | Method of adaptively controlling individual cylinder fuel injection quantities in electronically controlled diesel engine and device therefor | Masaomi Nagase, Kiyotaka Matsuno | 1986-05-27 |
| 4572130 | Method of controlling individual cylinder fuel injection quantities in electronically controlled diesel engine and device therefor | Masaomi Nagase, Kiyotaka Matsuno | 1986-02-25 |