Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7526942 | Contact combustion gas sensor | Seiichi Otani, Mamoru Furusato, Yoshikazu Shibasaki | 2009-05-05 |
| 6348872 | Gas detector-alarm employing hot-wire gas sensor | Seiichi Otani | 2002-02-19 |