Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5917790 | Optical information recording/reproducing method and apparatus for performing auto-tracking control using a three-beam method, with respect to first and second recording media having different track pitches | Shinichi Ohta | 1999-06-29 |
| 5835471 | Optical information recording and/or reproducing apparatus | Kengo Emoto | 1998-11-10 |
| 5771219 | Optical information recording and/or reproducing apparatus | — | 1998-06-23 |
| 5760900 | Method and apparatus for optically measuring specimen | Yuji Ito, Yoshiyuki Toge, Atsushi Saito, Tatsuya Yamazaki | 1998-06-02 |
| 5444224 | Optical information recording/reproducing apparatus | — | 1995-08-22 |
| 5379286 | Optical information recording-reproducing apparatus having a prism | — | 1995-01-03 |
| 5373492 | Optical information recording/reproducing apparatus | Masato Inoue | 1994-12-13 |
| 5123731 | Particle measuring device | Kazuo Yoshinaga | 1992-06-23 |
| 4999513 | Particle measuring apparatus | Yuji Ito | 1991-03-12 |
| 4893929 | Particle analyzing apparatus | — | 1990-01-16 |