Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6892566 | Gas concentration sensor | Masashi Sakamoto, Yoshikuni Sato, Hideki Ishikawa, Noboru Ishida | 2005-05-17 |
| 6886412 | Ultrasonic-wave propagation-time measuring method and gas concentration sensor | Hideki Ishikawa, Yoshikuni Sato, Noboru Ishida, Takafumi Oshima | 2005-05-03 |