Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5335059 | Method and apparatus for measuring lens performance | Koichi Maruyuma, Syun'itirou Wakamiya | 1994-08-02 |
| 5321550 | Optical system of optical information recording/reproducing apparatus | Koichi Maruyama | 1994-06-14 |