Issued Patents All Time
Showing 76–81 of 81 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5650987 | Optical data recording/reproducing apparatus and optical data storage medium for use in the same | — | 1997-07-22 |
| 5648951 | Movable optical head integrally incorporated with objective lens and hologram element | Makoto Kato, Yoshiaki Komma, Yoshikazu Hori, Seiji Nishino, Tetsuo Saimi | 1997-07-15 |
| 5587985 | Signal processing device for an optical information reproducing apparatus | Kousei Sano | 1996-12-24 |
| 5519685 | Optical pickup head apparatus capable of suppressing crosstalk from adjacent tracks and in the recording line density direction | Makoto Kato, Hiroaki Yamamoto, Seiji Nishino | 1996-05-21 |
| 5406545 | Servo pattern in an optical data storage medium for obtaining a tracking error signal | — | 1995-04-11 |
| 5296694 | Optical pick-up head apparatus with optical means having polarization anisotropy | Yoshiaki Komma, Seiji Nishino, Hiroaki Yamamoto | 1994-03-22 |