Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6418782 | Gas concentration sensor | Yoshikuni Sato, Hideki Ishikawa, Takafumi Oshima, Yasushi Sato | 2002-07-16 |
| 6375828 | Methods and apparatus for measuring NOx gas concentration, for detecting exhaust gas concentration and for calibrating and controlling gas sensor | Masashi Ando, Satoshi Sugaya, Takafumi Oshima, Norihiko Nadanami, Takaki Otsuka +3 more | 2002-04-23 |
| 6344134 | Method for measuring NOx concentration and NOx concentration sensor | Tessho Yamada, Toshitaka Matsuura, Yoshiro Noda, Nobuhiro Hayakawa, Norihiko Nadanami +4 more | 2002-02-05 |