Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5486816 | Fire detector having optic base clamping optic elements to a circuit board | Eiji Hirooka | 1996-01-23 |
| 5478256 | Fire detector having bayonet coupling and locking mechanism for base and detector unit | Kazuyuki Koganemaru | 1995-12-26 |
| 5403198 | Detector base | Kazuyuki Koganemaru | 1995-04-04 |
| D339998 | Smoke detector | Yoshinori Igarashi, Ichirou Kobayashi | 1993-10-05 |
| D339756 | Smoke detector | Yoshinori Igarashi, Toru Sasaki, Ichirou Kobayashi, Kentaro Higashi | 1993-09-28 |
| 5021677 | Light-scattering-type smoke detector | Yoshinori Igarashi, Makoto Yasukawa, Ichiro Kobayashi, Satoru Horiuchi | 1991-06-04 |