Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12379313 | Fire detection device | Keisuke Washizu, Manabu Dohi, Yasuharu Fujiwara, Hideki Takano | 2025-08-05 |
| 11761890 | Fire detection device | Keisuke Washizu, Manabu Dohi, Yasuharu Fujiwara, Hideki Takano | 2023-09-19 |
| 11698340 | Fire detection apparatus | Manabu Dohi, Keisuke Washizu | 2023-07-11 |
| 11454582 | Sensor | Keisuke Washizu, Manabu Dohi | 2022-09-27 |
| 10950113 | Alarm device | — | 2021-03-16 |
| 10943453 | Alarm apparatus | — | 2021-03-09 |