Issued Patents 2018
Showing 1–2 of 2 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 |