Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5154570 | Vertical shaft pump | Shizuichi Sakamoto, Sumio Sudo | 1992-10-13 |
| 4683440 | High-frequency amplifier device | — | 1987-07-28 |
| 4408207 | Angular error detecting device | — | 1983-10-04 |
| 4384646 | Pressurized preservation container | Noriaki Sakamoto | 1983-05-24 |
| 4345255 | Antenna feed system | Keigo Komuro, Matsuichi Yamada, Katsuhiko Aoki, Fumio Itoh, Fumio Takeda +1 more | 1982-08-17 |