Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6928512 | Semiconductor device with non-volatile memory and random access memory | Kazushige Ayukawa, Seiji Miura, Tetsuya Iwamura, Yoshikazu Saitou | 2005-08-09 |
| 5214267 | Apparatus for controlling heater for heating oxygen sensor | Makoto Suzuki | 1993-05-25 |
| 5088281 | Method and apparatus for determining deterioration of three-way catalysts in double air-fuel ratio sensor system | Takahide Izutani, Nobuaki Kayanuma, Michio Furuhashi, Yukihiro Sonoda, Hiroyuki Sawamoto +2 more | 1992-02-18 |
| 5018494 | Idling speed control device of an engine | Yukihiro Sonoda, Kouichi Osawa, Hiroshi Kanai, Hiroki Matsuoka, Michihiro Ohashi +1 more | 1991-05-28 |
| 4991559 | Fuel injection control device of an engine | Kouichi Osawa, Hiroshi Kanai, Hiroki Matsuoka, Michihiro Ohashi, Yukihiro Sonoda +7 more | 1991-02-12 |
| 4981122 | Fuel injection control device of an engine | Kouichi Osawa, Hiroshi Kanai, Hiroki Matsuoka, Michihiro Ohashi, Yukihiro Sonoda +1 more | 1991-01-01 |
| 4976242 | Fuel injection control device of an engine | Yukihiro Sonoda, Kouichi Osawa, Hiroshi Kanai, Hiroki Matsuoka, Michihiro Ohashi +1 more | 1990-12-11 |
| 4938196 | Control device for heater for oxygen sensor operative to correct target resistance with reference to standard power supply thereto | Masaru Goudo, Mitsuhiro Suzuki, Ritsuo Masaki, Akira Hashizume, Hidemi Ohnaka | 1990-07-03 |
| 4732128 | Method and apparatus for controlling heater for heatng air-fuel ratio sensor | Mamoru Yoshioka, Kenichi Nomura, Takahide Izutani | 1988-03-22 |