Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10151693 | Photoelectric smoke sensor | Masao Iguchi, Kanji Numao, Shintaro Masumoto | 2018-12-11 |
| 10054542 | Photoelectric smoke detector | Masao Iguchi, Kanji Numao, Shintaro Masumoto | 2018-08-21 |
| 9297753 | Photoelectric smoke sensor | Takuya Ookawa, Masao Iguchi | 2016-03-29 |
| 8743366 | Light emission portion, photoelectric smoke sensor, and suction-type smoke sensing system | Kanji Numao | 2014-06-03 |