Issued Patents All Time
Showing 26–50 of 79 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6539785 | Diagnosis system for valve system of internal combustion engine | — | 2003-04-01 |
| 6513494 | System and method of controlling ignition timing in an engine with a variably operated intake valve | Takao Kawasaki | 2003-02-04 |
| 6513490 | Unthrottled intake air control with partial delay for requested engine response performance | Takao Kawasaki, Masahiro Arai | 2003-02-04 |
| 6502543 | Intake-air quantity control apparatus for internal combustion engines | Masahiro Arai | 2003-01-07 |
| 6425369 | Control apparatus for internal combustion engines | Masahiro Arai | 2002-07-30 |
| 6397814 | Apparatus and method for controlling intake air quantity for internal combustion engine | Keisuke Fujiwara | 2002-06-04 |
| 6363907 | Air induction control system for variable displacement internal combustion engine | Masahiro Arai | 2002-04-02 |
| 6349592 | Intake air quantity calculating apparatus for an internal combustion engine with a variable valve timing control mechanism | Takahiko Hirasawa, Yoshiaki Yoshioka | 2002-02-26 |
| 6328007 | Internal cylinder intake-air quantity calculating apparatus and method for variable valve open/closure timing controlled engine | Takahiko Hirasawa, Yoshiaki Yoshioka | 2001-12-11 |
| 6276316 | Intake-air quantity control apparatus for internal combustion engine with variable valve timing system | Masahiro Arai | 2001-08-21 |
| 6189512 | Variable valve timing engine | Takao Kawasaki | 2001-02-20 |
| 6178934 | System and method for controlling internal combustion engine | Takahiko Hirasawa, Mikio Matsumoto | 2001-01-30 |
| 6142117 | Combustion changeover control for engine | Toshio Hori, Shinji Nakagawa, Tomohiko Takahashi, Takahiro Yoshino | 2000-11-07 |
| 6125628 | Engine startup air-fuel ratio controller | Takehiko Itami, Yoshiaki Yoshioka | 2000-10-03 |
| 6116227 | Engine air-fuel ratio controller | Yoshiaki Yoshioka | 2000-09-12 |
| 6058905 | Fuel injection control system for internal combustion engine | Takamasa Ueda, Hiroshi Iwano, Yuki Nakajima | 2000-05-09 |
| 5946907 | Engine catalyst activation determining device and engine controller related thereto | Takehiko Itami, Hideaki Takahashi | 1999-09-07 |
| 5887568 | Controller and control method for engine ignition timing | Satoshi Takeyama, Hiroshi Iwano, Yasuo Takagi, Masaaki Uchida | 1999-03-30 |
| 5884605 | Controller and control method for engine ignition timing | Yoshiaki Yoshioka, Kazushige Yokota | 1999-03-23 |
| 5762043 | Engine fuel injection controller | Yoshiaki Yoshioka | 1998-06-09 |
| 5690086 | Air/fuel ratio control apparatus | Akihiro Kawano, Yoshiaki Yoshioka | 1997-11-25 |
| 5560339 | Fuel injection control system for internal combustion engine | Yoshiaki Yoshioka | 1996-10-01 |
| 5535586 | Engine ignition period controller | Kenji Ohta, Hiroshi Twano | 1996-07-16 |
| 5529043 | Signal processor | Kenji Ohta, Hiroyuki Itoyama | 1996-06-25 |
| 5474049 | Engine fuel injection controller | Kenji Ohta, Hiroshi Iwano | 1995-12-12 |