Issued Patents 2005
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6923902 | Methods and apparatus for measuring NOx gas concentration, for detecting exhaust gas concentration and for calibrating and controlling gas sensor | Masashi Ando, Noboru Ishida, Satoshi Sugaya, Takafumi Oshima, Norihiko Nadanami +3 more | 2005-08-02 |
| 6892565 | Gas sensor and gas concentration detecting device | Hideki Ishikawa, Morio Onoda, Takeshi Morita, Noboru Ishida | 2005-05-17 |
| 6892566 | Gas concentration sensor | Masashi Sakamoto, Hideki Ishikawa, Keigo Banno, Noboru Ishida | 2005-05-17 |
| 6886412 | Ultrasonic-wave propagation-time measuring method and gas concentration sensor | Keigo Banno, Hideki Ishikawa, Noboru Ishida, Takafumi Oshima | 2005-05-03 |