Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4492928 | Comb filter | Daishiro Hayakawa, Masao Akimoto, Katsumi Narita | 1985-01-08 |
| 4403166 | Piezoelectric relay with oppositely bending bimorphs | Fumio Tanaka, Hideo Mifune | 1983-09-06 |