Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5580477 | Electric power supply for a heater heating a catalyst for purifying automotive exhaust gases | Nobuyuki Oota, Hiroshi Okazaki, Teruo Tatsumi, Yasutoshi Yamada | 1996-12-03 |
| 5482213 | Fuel injection valve operated by expansion and contraction of piezoelectric element | Masanobu Matsusaka, Susumu Sugimoto, Yasutoshi Yamada | 1996-01-09 |
| 5477831 | Fuel injection control device for internal combustion engine | Yasutoshi Yamada, Nobuyuki Oota, Masaki Mitsuyasu, Daisaku Sawada | 1995-12-26 |
| 5425343 | Fuel injection control device for internal combustion engine | Yasutoshi Yamada, Nobuyuki Oota, Masaki Mitsuyasu, Daisaku Sawada | 1995-06-20 |
| 5401371 | Hydrogen generator | Yujiro Oshima, Katsushi Abe, Kazuo Kawahara, Souichi Matsushita | 1995-03-28 |
| 5301502 | After-burner system | Nobuyuki Oota, Yasutoshi Yamada, Souichi Matsushita | 1994-04-12 |
| 5247919 | Ignition system for an engine | Nobuyuki Oota, Yasutoshi Yamada | 1993-09-28 |
| 5169067 | Electromagnetically operated ultrasonic fuel injection device | Masanobu Matsusaka, Hirotsugu Sugiura | 1992-12-08 |
| 5140970 | Ignition controlling device | Nobuyuki Oota, Yasutoshi Yamada | 1992-08-25 |