Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5771217 | Magneto-optical disk apparatus having a ejector arm and magnetic field generating means mounted on a stationary base | Mitsuo Takahashi, Koji Asako, Kazuhiko Kageyama, Yoshihiro Sato | 1998-06-23 |
| 5649081 | Method and apparatus for pattern data processing | Norihiro Nakajima, Hiroshi Arai, Ichiro Harashima, Yoshiaki Shinotsuka, Tomotoshi Ishida +2 more | 1997-07-15 |
| 5485560 | Displaying method and system for displaying an object by designating a state of display of the object | Tomotoshi Ishida, Shunsuke Minami, Yasumasa Kawashima, Hiroshi Arai, Takeo Yamada | 1996-01-16 |
| 5479499 | Sensor circuit for voice/fax switch with cascaded amplifier circuit | Katsumi Taniguchi, Hiroyuki Ohta | 1995-12-26 |
| 5392273 | Optical storage drive controller with predetermined light source drive values stored in non-volatile memory | Takashi Masaki, Shigenori Yanagi | 1995-02-21 |
| 5339247 | Distributed data CAD system | Shigeki Kirihara, Koichi Mitsuda | 1994-08-16 |
| 5142520 | System for obtaining optimum focusing position in optical disc system | Shigenori Yanagi, Akira Minami, Masateru Sasaki, Toshitaka Iwamoto, Hidenori Saitoh | 1992-08-25 |
| 4899325 | Fine access method and circuit for an optical disk drive using a multi-track jump | Wataru Katsuhara | 1990-02-06 |
| 4888752 | Focusing and tracking servo system for controlling the projection of an optical beam on an optical disk | — | 1989-12-19 |
| 4855983 | Apparatus for recording and reading an optical disk, having reduced offset in its tracking error signal | — | 1989-08-08 |
| 4782474 | Tracking servo system for controllably projecting an optical beam on an optical disk | Toshitaka Iwamoto | 1988-11-01 |
| 4627040 | Optical disk tracking apparatus | Itaru Shibata, Akira Minami, Koichi Ogawa | 1986-12-02 |