Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6070458 | Throttle valve opening detecting device | Hideaki Nawa, Sadao Takaki, Atsushi Ito, Haruhiko Nishino, Masao Takeda | 2000-06-06 |
| 5452603 | Method for detecting lean limit by means of ionic current in an internal combustion engine | Morito Asano, Sadao Takaki, Manabu Takeuchi | 1995-09-26 |
| 5168701 | Method of controlling the air-fuel ratio in an internal combustion engine | Toshio Yamamoto, Youichi Iwakura | 1992-12-08 |