Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7248173 | Smoke detector | Ryoichi Yamasaki, Takeshi Ueno | 2007-07-24 |
| D450008 | Fire detector | Kazuyoshi Sakurai, Ichiro Hamada | 2001-11-06 |
| 6300876 | Fire detector | Kazuyoshi Sakurai, Ichiro Hamada | 2001-10-09 |
| D426482 | Fire detector | Kazuyoshi Sakurai, Ichiro Hamada | 2000-06-13 |