Issued Patents All Time
Showing 101–125 of 153 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7073323 | Secondary air supply apparatus and method for detecting abnormality thereof | Shigemasa Hirooka | 2006-07-11 |
| 7059298 | Evaporative fuel processing device for an internal combustion engine | Toshihiro Ozaki | 2006-06-13 |
| 7059120 | Device for controlling internal combustion engine | Norihisa Nakagawa | 2006-06-13 |
| 7032571 | Internal combustion engine controller | Yasuyuki Takama | 2006-04-25 |
| 6945035 | Auxiliary air supplying system, and control methods and failure diagnostic methods thereof | Shigemasa Hirooka | 2005-09-20 |
| 6918245 | Secondary air feeding apparatus and method of detecting abnormality in the apparatus | Shigemasa Hirooka | 2005-07-19 |
| 6832474 | Exhaust gas purification device of internal combustion engine and method therefore | Shigemasa Hirooka | 2004-12-21 |
| 6742379 | Intake air oxygen concentration sensor calibration device and method | Takuji Matsubara | 2004-06-01 |
| 6739177 | Combustible-gas sensor, diagnostic device for intake-oxygen concentration sensor, and air-fuel ratio control device for internal combustion engines | Fumihiko Sato, Takuji Matsubara, Yoshihiko Hyoudo, Takayuki Takeuchi, Naohisa Oyama +1 more | 2004-05-25 |
| 6695895 | Fuel vapor handling apparatus and diagnostic apparatus thereof | Yoshihiko Hyodo, Takanobu Kawano, Hideaki Itakura, Masaki Takeyama, Naoya Kato | 2004-02-24 |
| 6637415 | Evaporative fuel leakage preventing device for internal combustion engine | Yoshihiko Hyodo | 2003-10-28 |
| 6631632 | Intake air oxygen concentration sensor calibration device and method | Takuji Matsubara | 2003-10-14 |
| 6474148 | Diagnostic apparatus for fuel vapor purge system | Naoya Takagi, Yoshihiko Hyoudou | 2002-11-05 |
| 6446614 | Fuel storage apparatus and abnormality diagnostic method | Takuya Matsuoka, Yoshihiko Hyoudou, Naoya Takagi | 2002-09-10 |
| 6415772 | Evaporative emission control system | Takanori Taga | 2002-07-09 |
| 6405718 | Malfunction test apparatus for fuel vapor purge system | Yoshihiko Hyodo, Naoya Takagi | 2002-06-18 |
| 6371089 | Diagnostic apparatus and method of fuel vapor purge system | Takuya Matsuoka, Yoshihiko Hyoudou, Naoya Takagi | 2002-04-16 |
| 6371086 | Fuel injection control apparatus and method of direct fuel injection-type spark ignition engine | Takuji Matsubara | 2002-04-16 |
| 6367459 | Air-fuel ratio variation suppressing apparatus for internal combustion engine | Kenichiro Kawase, Kiyoshi Asada, Noritake Mitsutani | 2002-04-09 |
| 6109225 | Valve timing control device for an internal combustion engine | Tamotsu Ogita | 2000-08-29 |
| 5957110 | Ignition timing control device of an engine | — | 1999-09-28 |
| 5909728 | Air assist device of an engine | Yasuhiro Ooi | 1999-06-08 |
| 5857437 | Method of and apparatus for continuously and variably controlling valve timing of internal engine | — | 1999-01-12 |
| 5797381 | Air assist device of an engine | Yasuhiro Ooi | 1998-08-25 |
| 5797382 | Air assist device of an engine | Yasuhiro Oi | 1998-08-25 |