Issued Patents All Time
Showing 51–61 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6269069 | Optical disk, optical disk device, and method of reproducing information on optical disk | Takashi Ishida | 2001-07-31 |
| 6269068 | Optical disk, optical disk device, and method of reproducing information on optical disk | Takashi Ishida | 2001-07-31 |
| 6266309 | Optical disk, optical disk device, and method of reproducing information on optical disk | Takashi Ishida | 2001-07-24 |
| 6266307 | Optical disk, optical disk device, and method of reproducing information on optical disk | Takashi Ishida | 2001-07-24 |
| 6208603 | Optical disk, optical disk device, and method of reproducing information on optical disk | Takashi Ishida | 2001-03-27 |
| 6181655 | Optical disc drive, timing signal generator, and information recording and reproduction method | — | 2001-01-30 |
| 6172960 | Optical disk and recording/reproducing apparatus using multiple address block groups shifted oppositely with multiple address blocks | Yoshinari Takemura, Shigeru Furumiya, Takashi Ishida, Yoshito Aoki, Shunji Ohara +1 more | 2001-01-09 |
| 5850382 | Optical disk having a rewritable area and a read-only area | Kenji Koishi, Shunji Ohara, Takashi Ishida, Isao Satoh, Yoshinari Takemura +2 more | 1998-12-15 |
| 5809007 | Optical disk and optical disk reproduction apparatus | Yoshinari Takemura, Shunji Ohara, Takashi Ishida, Yoshito Aoki, Shigeru Furumiya | 1998-09-15 |
| 5737481 | Information recording method, information recording apparatus and information recording medium | Yoshiharu Kobayashi, Ryoji Yamaguchi, Satoshi Kondo, Katsuhiko Yoshida, Shigeru Furumiya +2 more | 1998-04-07 |
| 5506825 | Optical disk and optical recording and reproducing apparatus | Yoshiharu Kobayashi | 1996-04-09 |