Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5444375 | Ionization current detector for detecting the ionization current generated in a plurality of ignition coils of an internal combustion engine | Shigemi Murata | 1995-08-22 |
| 5424647 | Combustion detection device for internal combustion engine provided with a voltage regulating circuit to prevent premature combustion | Shigemi Murata | 1995-06-13 |
| 5397990 | Device for accurately detecting ion current of internal combustion engine by masking noise generated by an ignition coil | — | 1995-03-14 |
| 5343844 | Apparatus and method for detecting misfiring in an internal combustion engine | Wataru Fukui, Toshio Iwata | 1994-09-06 |
| 5337716 | Control apparatus for internal combustion engine | Wataru Fukui | 1994-08-16 |
| 5309884 | Internal combustion engine control apparatus with ignition coil diagnosis function | Wataru Fukui | 1994-05-10 |
| 5293129 | Ionic current sensing apparatus for engine spark plug with negative ignition voltage and positive DC voltage application | Masayuki Ikeuchi, Shigemi Murata, Toshio Iwata, Takanobu Yonetsu | 1994-03-08 |
| 5272914 | Ignition system for internal combustion engines | Shigemi Murata, Masayuki Ikeuchi, Toshio Iwata | 1993-12-28 |
| 5271268 | Ionic current sensing apparatus | Masayuki Ikeuchi, Shigemi Murata, Toshio Iwata, Atsushi Ueda | 1993-12-21 |
| 5263452 | Knocking detector for internal combustion engine | Wataru Fukui | 1993-11-23 |
| 5230240 | Combustion detecting apparatus for internal combustion engine | Toshio Iwata | 1993-07-27 |
| 5222393 | Apparatus for detecting combustion in an internal combustion engine | — | 1993-06-29 |
| 5168854 | Method and apparatus for detecting failure of pressure sensor in internal combustion engine | Atsuko Hashimoto, Toshio Iwata, Wataru Fukui | 1992-12-08 |
| 5146893 | Apparatus for and a method of detecting combustion in an internal combustion engine | — | 1992-09-15 |
| 5067462 | Control device and method for multicylinder engine with a cylinder discrimination function | Toshio Iwata | 1991-11-26 |