Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6568240 | Method and apparatus using a gas concentration sensor for accurately controlling an air fuel ratio in an internal combustion engine | Yoshikuni Sato, Noboru Ishida, Takafumi Oshima, Yasushi Sato | 2003-05-27 |
| 6568281 | Ultrasonic-wave propagation-time measuring method, gas-pressure measuring method, gas-flow rate measuring method, and gas sensor | Yoshikuni Sato, Keigo Banno, Noboru Ishida, Takafumi Oshima | 2003-05-27 |