Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6306351 | Nitrogen oxides detection method, and sensor element for detection of nitrogen oxides | Katsuki Higaki, Hisao Ohnishi | 2001-10-23 |
| 5980833 | Carbon monoxide sensor | Katsuki Higaki, Hisao Ohnishi, Soichi Tabata, Osamu Okada, Yosuke Nagasawa | 1999-11-09 |
| 5863503 | Nitrogen oxide detecting sensor and method of manufacturing the same | Hisao Ohnishi, Masamichi Ipponmatsu, Shoji Tanaka, Hisao Yamauchi, Satoshi Takano +1 more | 1999-01-26 |
| 5810984 | Nitrogen oxide sensor and method of manufacturing the sensor | Hisao Ohnishi, Hisashi Sakai | 1998-09-22 |
| 5734091 | Method of manufacturing nitrogen oxide sensor, and nitrogen oxide sensor manufactured by the method and material therefor | Hisao Ohnishi, Hisashi Sakai | 1998-03-31 |