Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5337865 | Viscoelastic substance and objective lens driving apparatus with the same | Akihiro Kasahara, Akira Yamada, Takashi Yoshizawa, Hideo Yamasaki | 1994-08-16 |
| 5206762 | Viscoelastic substance and objective lens driving apparatus with the same | Akihiro Kasahara, Akira Yamada, Takashi Yoshizawa, Hideo Yamasaki | 1993-04-27 |
| 4948230 | Objective lens driving apparatus | Akihiro Kasahara, Akira Yamada, Hideo Yamasaki | 1990-08-14 |