Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6568281 | Ultrasonic-wave propagation-time measuring method, gas-pressure measuring method, gas-flow rate measuring method, and gas sensor | Yoshikuni Sato, Hideki Ishikawa, Noboru Ishida, Takafumi Oshima | 2003-05-27 |