Issued Patents All Time
Showing 26–50 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5594163 | Fuel mixing ratio detecting device | — | 1997-01-14 |
| 5592098 | Channel forming fuel permittivity sensor with automatic temperature compensation | Akira Okada, Takahiro Moronaga | 1997-01-07 |
| 5543722 | Channel forming fuel permittivity sensor with automatic temperature compensation | Akira Okada, Takahiro Moronaga | 1996-08-06 |
| 5515280 | Electronic control device for a multi-fuel internal combustion engine | — | 1996-05-07 |
| 5414368 | Dielectric constant detecting apparatus | Kenji Ogawa | 1995-05-09 |
| 5394011 | Package structure for semiconductor devices and method of manufacturing the same | Hiroyasu Yamamoto, Takayuki Konuma, Akira Shika, Masanori Katouno, Kaori Sato | 1995-02-28 |
| 5340462 | Air-fuel ratio sensor | — | 1994-08-23 |
| 5279145 | Heater control device for an air-fuel ratio sensor | — | 1994-01-18 |
| 5234666 | Alcohol content detector | — | 1993-08-10 |
| 5225783 | Dielectric constant detection apparatus for fuel | Kenji Ogawa, Akira Okada | 1993-07-06 |
| 5182519 | Heater control device for an air-fuel ratio sensor | — | 1993-01-26 |
| 5172677 | Device for determining activation of an air-fuel ratio sensor | — | 1992-12-22 |
| 5172678 | Device for determining activation of an air-fuel ratio sensor | — | 1992-12-22 |
| 5157453 | Liquid content detecting device for alcohol regular gasoline and premium gasoline fuel mixture | Kenji Ogawa | 1992-10-20 |
| 5157452 | Method and apparatus for liquid content detection with refractive index and temperature signal mixing | Kenji Ogawa | 1992-10-20 |
| 5148369 | Air-fuel control apparatus for an internal combustion engine | Masanobu Uchinami, Toshihisa Takahashi, Ryoji Nishiyama, Shinichi Nishida | 1992-09-15 |
| 5110205 | Apparatus for detecting alcohol concentration | Kenji Ogawa, Toru Yamamoto | 1992-05-05 |
| 5074659 | Device for detecting alcoholic content | Kenji Ogawa, Hiroko Maekawa | 1991-12-24 |
| 5039217 | Optical transceiver apparatus for detecting distance between two cars | Hiroko Maekawa, Kenji Ogawa | 1991-08-13 |
| 5026153 | Vehicle tracking control for continuously detecting the distance and direction to a preceding vehicle irrespective of background dark/light distribution | Kenji Ogawa, Hiroko Maekawa, Seiya Kominami, Yoshiaki Asayama | 1991-06-25 |
| 5015091 | Device for detecting alcoholic content | Kenji Ogawa, Hiroko Maekawa | 1991-05-14 |
| 4895123 | Apparatus for controlling air-fuel ratio of internal combustion engine | Masanobu Uchinami, Toshihisa Takahashi, Ryoji Nishiyama, Shinichi Nishida | 1990-01-23 |
| 4889098 | Air-fuel ratio detecting apparatus for an internal combustion engine equipped with a heater controller | Ryoji Nishiyama, Shinichi Nishida | 1989-12-26 |
| 4886028 | Apparatus for controlling air-fuel ratio of internal combustion engine | Masanobu Uchinami, Toshihisa Takahashi, Ryoji Nishiyama, Shinichi Nishida | 1989-12-12 |
| 4794903 | Recirculated exhaust gas quantity control apparatus for internal combustion engine | — | 1989-01-03 |