Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6375828 | 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, Takaki Otsuka +3 more | 2002-04-23 |
| 6344134 | Method for measuring NOx concentration and NOx concentration sensor | Tessho Yamada, Noboru Ishida, Toshitaka Matsuura, Yoshiro Noda, Nobuhiro Hayakawa +4 more | 2002-02-05 |
| 6337009 | Gas sensor | Takafumi Oshima, Hiroki Fujita, Ryuji Inoue | 2002-01-08 |