Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10151693 | Photoelectric smoke sensor | Masao Iguchi, Tadayuki Shibuya, Kanji Numao | 2018-12-11 |
| 10054542 | Photoelectric smoke detector | Masao Iguchi, Tadayuki Shibuya, Kanji Numao | 2018-08-21 |
| 9574996 | Suction-type smoke sensing system | Kazuhisa Itoh, Masao Iguchi, Fumiyoshi Kobayashi, Satoru Nakahata | 2017-02-21 |