Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11393312 | Portable smoke detector and method for identifying smoke generation position | — | 2022-07-19 |
| 9157854 | Scattered light-type smoke detection apparatus | — | 2015-10-13 |
| 9087444 | Alarm device | Yoshitaka Egawa | 2015-07-21 |
| 8514074 | Alarm | Yoshitaka Egawa | 2013-08-20 |
| 8493203 | Alarm device | Yoshitaka Egawa | 2013-07-23 |
| 6914535 | Light scattering type smoke sensor | Manabu Dohi, Hiroshi Honma, Hiroshi Shima | 2005-07-05 |
| 6806471 | Flame detection device | Masahiko Nemoto, Hiroshi Shima | 2004-10-19 |
| 6373393 | Flame detection device and flame detection | Hiroshi Shima, Masato Aizawa | 2002-04-16 |
| 6271758 | Light projection device for a photoelectric smoke sensor | Masatoshi Nakamura, Hiroshi Shima | 2001-08-07 |