Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6886531 | Control apparatus for an internal combustion engine | Teruaki Kawakami, Tadahiro Azuma, Hiroyuki Kobayashi | 2005-05-03 |
| 6877498 | Oxygen sensor deterioration diagnosis apparatus | Yuhei Matsushima | 2005-04-12 |
| 5916131 | Apparatus for purifying engine exhaust gas | Yasuhiko Hosoya, Tatsuhiko Takahashi, Mutsuo Sekiya | 1999-06-29 |
| 5724810 | Controlling apparatus for introduction air into an exhaust pipe of an internal combustion engine | Yasuhiko Hosoya, Hideaki Katashiba | 1998-03-10 |
| 5675968 | Secondary air control apparatus for exhaust gas purifier | Hideaki Katashiba, Ryoji Nishiyama, Yasuhiko Hosoya | 1997-10-14 |
| 5566547 | Controlling apparatus for introducing air into an exhaust pipe of an internal combustion engine | Yasuhiko Hosoya, Hideaki Katashiba | 1996-10-22 |
| 5549872 | Apparatus for purifying engine exhaust gas | Yasuhiko Hosoya | 1996-08-27 |
| 5493858 | Controlling apparatus for introduction air into exhaust pipe of internal combustion engine | Yasuhiko Hosoya, Hideaki Katashiba | 1996-02-27 |
| 5459998 | Apparatus for introducing fresh air into exhaust pipe of internal combustion engine for purification of exhaust gas | Yasuhiko Hosoya, Hideaki Katashiba | 1995-10-24 |
| 5435129 | Apparatus for controlling air feeding to exhaust pipe of internal combustion engine | Yasuhiko Hosoya, Hideaki Katashiba | 1995-07-25 |
| 5425235 | Apparatus for purifying engine exhaust gas | Yasuhiko Hosoya, Tatsuhiko Takahashi, Mutsuo Sekiya | 1995-06-20 |
| 5333585 | Control device for idle rotation of engine | — | 1994-08-02 |
| 5195491 | Method and apparatus for controlling an engine | — | 1993-03-23 |
| 5172665 | Idle running control apparatus for internal combustion engine | — | 1992-12-22 |
| 5127262 | Misfire detecting device of an internal combustion engine | Akira Demizu, Akihiro Nakagawa | 1992-07-07 |
| 5125267 | Trouble diagnosis apparatus for an internal combustion engine | Akira Demizu, Akihiro Nakagawa | 1992-06-30 |
| 5116259 | Misfire detecting device of an internal combustion engine | Akira Demizu, Akihiro Nakagawa | 1992-05-26 |