Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5189851 | Movable dome-type roof for structure | Yukihiro Omika, Kuniaki Sato, Kazuo Kojima, Tsutomu Kumazawa, Yasuo Ogawa | 1993-03-02 |
| 4884222 | Fire alarm system | Tetsuya Nagashima, Sadataka Yuchi, Akira Kitajima | 1989-11-28 |
| 4803469 | Fire alarm system | — | 1989-02-07 |