Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4922650 | System for manufacturing solid medium | Takeshi Akao, Yoshihiko Nishizawa, Shiro Yamada, Hisahumi Fuse, Katsumichi Ohsaki +1 more | 1990-05-08 |
| 4851115 | Separator with movable receptacles | Takeshi Akao, Katsumichi Ohsaki, Muneki Yamada | 1989-07-25 |