Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5903387 | Optical axis adjustable binoculars | Fumio Tomikawa, Yasuo Yamazaki | 1999-05-11 |
| 5835276 | Optical system having compound prism design to reduce ghosts and plares | Masashi Hankawa, Yoshihiro Matsumoto | 1998-11-10 |