Issued Patents All Time
Showing 26–50 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6016794 | Fuel injection control apparatus for internal combustion engine | Atsuko Hashimoto, Shiro Yonezawa, Tatsuhiko Takahashi | 2000-01-25 |
| 5947077 | Control device for cylinder injection internal-combustion engine | Shiro Yonezawa | 1999-09-07 |
| 5924959 | Device for controlling an automatic transmission and an engine for vehicles | Shiro Yonezawa, Satoshi Wachi, Tatsuhiko Takahashi | 1999-07-20 |
| 5875762 | Engine controller | Kenichi Tsuchiya, Shiro Yonezawa, Tadashi Tubakiji | 1999-03-02 |
| 5794585 | Cylinder injection fuel control device for an internal-combustion engine | Shiro Yonezawa | 1998-08-18 |
| 5640846 | Dual-sensor type air-fuel ratio control system for internal combustion engine and catalytic converter diagnosis apparatus for the same | Shinya Fujimoto | 1997-06-24 |
| 5591905 | Deterioration detecting apparatus for catalytic converter | Shinya Fujimoto | 1997-01-07 |
| 5560202 | Exhaust gas cleaner system for an internal combustion engine with catalytic converter supplied with secondary air | Yasuhiko Hosoya, Tatsuhiko Takahashi | 1996-10-01 |
| 5519992 | Exhaust gas purification system for internal combustion engine, and apparatus and method for controlling the same | Yasuhiko Hosoya, Tatsuhiko Takahashi | 1996-05-28 |
| 5517848 | Exhaust gas purification system for internal combustion engine, and apparatus and method for controlling the same | Yasuhiko Hosoya, Tatsuhiko Takahashi | 1996-05-21 |
| 5503131 | Stepping motor driving apparatus and exhaust gas recirculation control system using the same | — | 1996-04-02 |
| 5501201 | Flow quantity valve controller and manufacturing method for flow quantity valve | Sotsuo Miyoshi, Hidetoshi Okada, Hajime Kako, Satoshi Kawamura, Toshihiko Miyake | 1996-03-26 |
| 5488938 | Fault detecting apparatus for exhaust gas recirculation control system of internal combustion engine | — | 1996-02-06 |
| 5459999 | Exhaust gas cleaner system for an internal combustion engine with catalytic converter supplied with secondary air | Yasuhiko Hosoya, Tatsuhiko Takahashi | 1995-10-24 |
| 5438827 | Dual-sensor type air-fuel ratio control system for internal combustion engine and catalytic diagnosis apparatus for the same | Shinya Fujimoto | 1995-08-08 |
| 5426937 | Dual-sensor type air-fuel ratio control system for internal combustion engine and catalytic converter diagnosis apparatus for the same | Shinya Fujimoto | 1995-06-27 |
| 5425234 | Dual-sensor type air-fuel ratio control system for internal combustion engine and catalytic converter diagnosis apparatus for the same | Shinya Fujimoto | 1995-06-20 |
| 5417061 | Device for detecting catalyst deterioration for an internal combustion engine | Mie Maeda | 1995-05-23 |
| 5417099 | Air-fuel ratio sensor trouble detecting apparatus | — | 1995-05-23 |
| 5363647 | Dual-sensor type air fuel ratio control system for internal combustion engine and catalytic converter diagnosis apparatus for the same | Shinya Fujimoto | 1994-11-15 |
| 5327873 | Malfunction sensing apparatus for a fuel vapor control system | Shinya Fujimoto | 1994-07-12 |
| 5257534 | Fault diagnosis device for an exhaust gas recycle control unit | Tadahiro Azuma | 1993-11-02 |
| 5257610 | Troubleshooting system for exhaust gas recirculation controller | — | 1993-11-02 |
| 5251599 | Internal combustion engine control device having exhaust gas recycle system | Yoshiaki Kanno | 1993-10-12 |
| 5184595 | Disorder diagnosis device for fuel injection apparatus | Mie Maeda | 1993-02-09 |