Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4790014 | Low-pitched sound creator | Koji Watanabe, Katsuhiko Hayashi, Nobuaki Minakuchi, Masayuki Misaki, Kenichi Terai +1 more | 1988-12-06 |
| 4340779 | Interpreter intercommunication and public address system | Hideaki Hashimoto, Mitsuo Abe | 1982-07-20 |