Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5758308 | Fuel metering control system for internal combustion engine | Hidetaka Maki, Shusuke Akazaki, Yusuke Hasegawa, Yoichi Nishimura, Toshiaki Hirota | 1998-05-26 |
| 5692485 | Feedback control system using adaptive control | Hidetaka Maki, Yusuke Hasegawa, Yoichi Nishimura | 1997-12-02 |
| 5657736 | Fuel metering control system for internal combustion engine | Hidetaka Maki, Shusuke Akazaki, Yusuke Hasegawa, Yoichi Nishimura, Toshiaki Hirota | 1997-08-19 |
| 5657735 | Fuel metering control system for internal combustion engine | Hidetaka Maki, Shusuke Akazaki, Yusuke Hasegawa, Yoichi Nishimura, Toshiaki Hirota | 1997-08-19 |
| 5600056 | Air/fuel ratio detection system for multicylinder internal combustion engine | Yusuke Hasegawa, Yoichi Nishimura | 1997-02-04 |
| 5597951 | Intake air amount-estimating apparatus for internal combustion engines | Masuhiro Yoshizaki, Shinichi Kitajima | 1997-01-28 |
| 5569847 | Air-fuel ratio estimator for internal combustion engine | Yusuke Hasegawa, Yoichi Nishimura, Shusuke Akazaki, Eisuke Kimura | 1996-10-29 |
| 5566071 | Air/fuel ratio estimation system for internal combustion engine | Shusuke Akazaki, Yusuke Hasegawa, Yoichi Nishimura | 1996-10-15 |
| 5549092 | Fuel metering control system in internal combustion engine | Yusuke Hasegawa, Shusuke Akazaki, Hidetaka Maki, Satoru Abe | 1996-08-27 |
| 5546907 | Fuel metering control system in internal combustion engine | Yusuke Hasegawa, Shusuke Akazaki, Hidetaka Maki | 1996-08-20 |
| 5548514 | Air/fuel ratio estimation system for internal combustion engine | Yusuke Hasegawa, Eisuke Kimura, Shusuke Akazaki, Yoichi Nishimura | 1996-08-20 |
| 5542404 | Trouble detection system for internal combustion engine | Yusuke Hasegawa, Yoichi Nishimura, Shushuke Akazaki | 1996-08-06 |
| 5540209 | Air-fuel ratio detection system for internal combustion engine | Yusuke Hasegawa, Yoichi Nishimura, Shusuke Akazaki, Eisuke Kimura, Satoru Abe +1 more | 1996-07-30 |
| 5531208 | Air-fuel ratio feedback control system for internal combustion engine | Yusuke Hasegawa, Shusuke Akazaki, Eisuke Kimura | 1996-07-02 |
| 5524598 | Method for detecting and controlling air-fuel ratio in internal combustion engine | Yusuke Hasegawa, Eisuke Kimura, Shusuke Akazaki, Toshiaki Hirota | 1996-06-11 |
| 5505174 | EGR rate estimation system for internal combustion engine | Yusuke Hasegawa, Hidetaka Maki, Shusuke Akazaki, Hiroshi Kitagawa, Toru Kitamura | 1996-04-09 |
| 5448978 | Fuel metering control system and cylinder air flow estimation method in internal combustion engine | Yusuke Hasegawa, Hidetaka Maki, Shusuke Akazaki, Toshiaki Hirota | 1995-09-12 |
| 5363648 | A/F ratio control system for internal combustion engine | Shusuke Akazaki, Yusuke Hasegawa, Yoichi Nishimura | 1994-11-15 |
| 5349933 | Fuel metering control system in internal combustion engine | Yusuke Hasegawa, Shusuke Akazaki, Hidetaka Maki, Toshiaki Hirota | 1994-09-27 |