Issued Patents All Time
Showing 26–50 of 92 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5293129 | Ionic current sensing apparatus for engine spark plug with negative ignition voltage and positive DC voltage application | Masayuki Ikeuchi, Shigemi Murata, Toshio Ohsawa, Takanobu Yonetsu | 1994-03-08 |
| 5287837 | Knock suppressing apparatus for internal combustion engine | Atsuko Hashimoto | 1994-02-22 |
| 5272914 | Ignition system for internal combustion engines | Shigemi Murata, Masayuki Ikeuchi, Toshio Ohsawa | 1993-12-28 |
| 5271268 | Ionic current sensing apparatus | Masayuki Ikeuchi, Shigemi Murata, Atsushi Ueda, Toshio Ohsawa | 1993-12-21 |
| 5263450 | Control apparatus for a multi-cylinder internal combustion engine | Atsuko Hashimoto | 1993-11-23 |
| 5230240 | Combustion detecting apparatus for internal combustion engine | Toshio Ohsawa | 1993-07-27 |
| 5212989 | Pressure sensor | Seiki Kodama, Atsushi Ueda, Yasuo Tada, Tateki Mitani, Yasuyoshi Hatazawa +2 more | 1993-05-25 |
| 5207200 | Misfiring sensing apparatus for an internal combustion engine | — | 1993-05-04 |
| 5205258 | Knock suppressing apparatus and method | Atsuko Hashimoto, Yasuhiko Hosoya, Atsushi Ueda | 1993-04-27 |
| 5190011 | Knocking control method and apparatus for internal combustion engine | Atsuko Hashimoto | 1993-03-02 |
| 5184590 | Engine timing control apparatus | Atsuko Hashimoto, Wataru Fukui | 1993-02-09 |
| 5182943 | Cylinder identification apparatus | Wataru Fukui, Yutaka Ohashi, Masayuki Ikeuchi | 1993-02-02 |
| 5168854 | Method and apparatus for detecting failure of pressure sensor in internal combustion engine | Atsuko Hashimoto, Wataru Fukui, Toshio Ohsawa | 1992-12-08 |
| 5161415 | Pressure sensor | Seiki Kodama, Yasuo Tada | 1992-11-10 |
| 5156125 | Engine control apparatus | Wataru Fukui | 1992-10-20 |
| 5144929 | Knock suppression apparatus and method for a multi-cylinder internal combusiton engine | Yasuhiko Hosoya | 1992-09-08 |
| 5140962 | Knock sensing apparatus for an internal combustion engine | — | 1992-08-25 |
| 5121729 | Knocking control method and apparatus for internal combustion engine | Atsuko Hashimoto, Wataru Fukui | 1992-06-16 |
| 5113821 | Vehicle speed governor | Wataru Fukui, Atsushi Ueda, Masami Matsumura, Mitsura Koiwa | 1992-05-19 |
| 5109820 | Apparatus and method for controlling knocking in an internal combustion engine | Atsuko Matsuoka, Atsuko Hashimoto | 1992-05-05 |
| 5087882 | Ionization current detector device for an internal combustion engine | — | 1992-02-11 |
| 5076234 | Apparatus and method for controlling a multi-cylinder internal conbustion engine | Wataru Fukui | 1991-12-31 |
| 5070842 | Apparatus for controlling ignition timing in internal combustion engine | Noriyuki Inoue, Satoru Ohkubo, Akira Demizu | 1991-12-10 |
| 5070726 | Cylinder recognition apparatus for a multi-cylinder internal combustion engine | Wataru Fukui | 1991-12-10 |
| 5067462 | Control device and method for multicylinder engine with a cylinder discrimination function | Toshio Ohsawa | 1991-11-26 |