Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8594906 | Diagnosis for multiple cylinder engine | Hajime Suetsugu, Kenji Kojima, John D. Russell | 2013-11-26 |
| 6679111 | Malfunction diagnostic apparatus for evaporated fuel purge system | Shingo Shigihama, Yoshimi Yamamoto, Seiji Makimoto | 2004-01-20 |
| 6357288 | Failure diagnosis system for evaporation control system | Shingo Shigihama, Katsuhiko Sakamoto, Yuji Ota | 2002-03-19 |
| 6321696 | Thermostat trouble diagnosis system in an engine cooling system | Futoshi Nishioka, Seiji Makimoto | 2001-11-27 |
| 6035835 | Valve operation verification system for verifying valve operation of valve disposed in hot gas flow passage | Shingo Shigihama, Tamotsu Kamakura, Katsuhiko Sakamoto, Futoshi Nishioka, Masanobu Kotoku +1 more | 2000-03-14 |
| 5996400 | Diagnostic system for detecting leakage of fuel vapor from purge system | Futoshi Nishioka, Katsuhiko Sakamoto, Shingo Shigihama, Susumu Takano | 1999-12-07 |
| 5851376 | Catalyst degradation determination apparatus and method | Futoshi Nishioka, Seiji Yashiki | 1998-12-22 |
| 5765372 | Lean burn engine for automobile | Noriaki Mitobe, Isao Shimizu, Kunitomo Minamitani, Yasuyoshi Hori, Futoshi Nishioka +4 more | 1998-06-16 |
| 5746187 | Automotive engine control system | Hiroshi Ninomiya | 1998-05-05 |
| 5732680 | Fuel injection control system for engine | Hiroshi Ninomiya | 1998-03-31 |
| 5685283 | Air-fuel ratio control system for engine | Futoshi Nishioka | 1997-11-11 |
| 5684454 | Anti-vehicle-thief apparatus | Futoshi Nishioka, Atsushi Okamitsu, Yoshimasa Kitaki | 1997-11-04 |
| 5637985 | Alternator control system | Shieaki Kakizaki, Tetsuro Takaba, Hiroshi Ninomiya | 1997-06-10 |
| 5634445 | Air-fuel ratio control system for engine | Futoshi Nishioka, Shinichi Mogaki | 1997-06-03 |
| 5553595 | Fuel system with fuel vapor estimating feature | Futoshi Nishioka, Kazuo Tanaka | 1996-09-10 |
| 5471963 | Fuel injection control system for engine | Futoshi Nishioka, Yasuyoshi Hori, Kunitomo Minamitani | 1995-12-05 |
| 5197431 | Ignition timing control system for engine | Tetsuro Takaba, Toshihiro Ishihara, Hideki Kobayashi | 1993-03-30 |
| 5086744 | Fuel control system for internal combustion engine | Toshihiro Ishihara, Tetsuro Takaba, Hideki Kobayashi | 1992-02-11 |
| 5080072 | Air-fuel ratio control system for engine | Tetsuro Takaba, Toshihiro Ishihara, Hideki Kobayashi | 1992-01-14 |
| 5065717 | Idle speed control system for engine | Tetsuro Takaba, Toshihiro Ishihara, Hideki Kobayashi | 1991-11-19 |
| 5050565 | Fuel control system for engine | Toshihiro Ishihara, Tetsuro Takaba, Hideki Kobayashi | 1991-09-24 |
| 4980834 | Air-to-fuel ratio control system | Tatsuji Ikeda, Masaki Fujii, Tetsuya Takata | 1990-12-25 |
| 4938197 | Fuel supply control system for engine | Yoshinobu Kido, Toshihiro HANDA, Naoya Takada | 1990-07-03 |
| 4856481 | Engine knocking control unit | Katsuya Kamise, Shigeru Yamamoto, Koji Miyamoto | 1989-08-15 |
| 4716871 | Intake system for engine | Katsuhiko Sakamoto, Hideo Shiraishi | 1988-01-05 |