Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6073700 | Sprinkler head | Toshihide Tsuji, Katsuaki Tonomura | 2000-06-13 |
| 6044912 | Sprinkler head | Toshihide Tsuji, Katsuaki Tonomura | 2000-04-04 |
| 5727634 | Fire detecting/extinguishing apparatus and water discharging nozzle therefor | Hiroshi Ishida, Akira Asoma, Shuji Matsumoto, Teruo Iwata, Hiroyuki Shibuya +3 more | 1998-03-17 |