Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6942481 | Disk production apparatus and disk produced by disk production apparatus | Akira Nishizawa, Takayuki Onizawa | 2005-09-13 |
| 6826063 | DC voltage converting circuit | Tomoyuki Ichikawa | 2004-11-30 |
| 6765851 | Optical disc, data-recording apparatus and data-recording method | Tetsuji Kawashima, Futoshi Tsukada, Kunihiko Miyake, Masazumi Shiozawa | 2004-07-20 |
| 6751171 | Method and apparatus for controlling servo loop amplification according to wobble signals formed in a guide groove of an optical disc | — | 2004-06-15 |
| 6707261 | Discharge lamp lighting circuit | Masayasu Ito | 2004-03-16 |
| 6246649 | Optical disc reproducing apparatus and method | Hitoshi Sakaguchi, Kazushi Yoshikawa | 2001-06-12 |
| 6023839 | Disk drive motor, and method of manufacturing its rotor | Shinji Kinoshita, Mitsuru Ide | 2000-02-15 |
| 5675430 | Rotary polygon mirror | Yutaka Ishizuka | 1997-10-07 |
| 5490127 | Asymmetry detector for use in an optical recording and reproducing device | Hiroyuki Ito | 1996-02-06 |
| 5475383 | Cross-point type switch using common memories | Tomohiro Shinomiya, Hiroshi Takeo, Misao Fukuda, Kazuo Iguchi | 1995-12-12 |
| 5353305 | Initial training apparatus for use in a transmitter and receiver apparatus | Misao Fukuda, Seiji Miyoshi, Seiichi Yamato, Kazuyoshi Maruyama, Yutaka Awata +1 more | 1994-10-04 |
| 5056121 | Circuit for obtaining accurate timing information from received signal | Misao Fukuda, Toshitaka Tsuda | 1991-10-08 |
| 4920535 | Demultiplexer system | Toshiaki Watanabe, Kazuo Iguchi, Tetsuo Soejima | 1990-04-24 |