Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6181480 | Microscope objective | — | 2001-01-30 |
| 5889617 | Objective lens systems | Hiroshi Yamada, Yutaka Suenaga | 1999-03-30 |
| 5729391 | Microscope objective lens | — | 1998-03-17 |
| 5708531 | Objective lens system | Hiroshi Yamada, Yutaka Suenaga | 1998-01-13 |