Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5871157 | Fuel injection valve | Norihisa Fukutomi, Tsuyoshi Munezane | 1999-02-16 |
| 5630400 | Fuel injection valve for an internal combustion engine | Norihisa Fukutomi, Tsuyoshi Munezane, Keita Hosoyama | 1997-05-20 |
| 5261371 | Idling revolution number control valve for an internal combustion engine | Osamu Matsumoto | 1993-11-16 |
| 5238222 | Flow control valve | Manabu Miyaki, Masayasu Miyajima | 1993-08-24 |
| 5156129 | Fuel supply device for an internal combustion engine | Osamu Matsumoto, Kazuyoshi Yamamoto | 1992-10-20 |
| 5139227 | Proportional flow control valve | Osamu Matsumoto | 1992-08-18 |
| 5137255 | Control valve device | Osamu Matsumoto, Tetsuji Kondo | 1992-08-11 |
| 5111775 | Cooling water temperature controlling apparatus | Masashi Hashimoto, Osamu Matsumoto | 1992-05-12 |
| 5081978 | Auxiliary air control valve for engines | Osamu Matsumoto | 1992-01-21 |
| 4972815 | Intake air quantity regulating device for an automobile engine | Kazuyoshi Yamamoto, Hirokazu Maehara, Osamu Matsumoto | 1990-11-27 |
| 4961342 | Apparatus for detecting throttle valve opening of engine | Osamu Matsumoto, Teruhiko Moriguchi | 1990-10-09 |
| 4947890 | Flow control valve with dirt protection | Hironobu Fukata, Takeji Yoshida, Osamu Matsumoto | 1990-08-14 |
| 4880207 | Intake throttle valve return device of engine | Osamu Matsumoto, Hirokazu Maehara | 1989-11-14 |
| 4866981 | Apparatus for detecting throttle valve opening of engine | Osamu Matsumoto, Teruhiko Moriguchi | 1989-09-19 |