Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4909329 | Fire supervising system and extinguishing target determining system | Yoshiyuki Yoshida, Kazutaka Onozuka, Yoshihiko Ohashi, Toshihide Tsuji | 1990-03-20 |
| 4801090 | Discharge pipe and discharge apparatus using the same | Yoshiyuki Yoshida, Kazutaka Onozuka, Yoshihiko Ohashi, Toshihide Tsuji, Yoshio Koyama | 1989-01-31 |