Issued Patents All Time
Showing 76–100 of 105 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6373816 | Optical disk fabricating method, optical disk, and optical disk apparatus | — | 2002-04-16 |
| 6262950 | Optical disc recording method and access method, optical disc, optical disc recording apparatus, and optical disc apparatus | Tatsuya Narahara | 2001-07-17 |
| 6256276 | Disk recording and reproducing apparatus and method for use in a rewritable type disk | Toru Takeda, Tamotsu Yamagami, Shozo Masuda | 2001-07-03 |
| 6256282 | Optical recording medium and recording method thereof | Tamotsu Yamagami, Toru Takeda, Koichiro Ogihara | 2001-07-03 |
| 6252836 | Tracking control method and apparatus, recording/reproducing apparatus and optical disc | — | 2001-06-26 |
| 6192018 | Recordable disc and device for recording data in the same disc | Shozo Masuda | 2001-02-20 |
| 6147945 | Recording/reproducing apparatus and method | Toru Takeda, Tamotsu Yamagami | 2000-11-14 |
| 6122764 | Disc recording medium for reproduction data from disc recording medium | — | 2000-09-19 |
| 6097695 | Optical disk with a groove for defining serial data modulated into a signal using modulation processing | — | 2000-08-01 |
| 6091700 | Optical disk and optical disk fabrication method | — | 2000-07-18 |
| 6067281 | Rewritable disc and device for recording data in the same disc | Shozo Masuda | 2000-05-23 |
| 6064639 | High speed data recording and/or reproducing method and apparatus with increased data sector access speed | Yoichiro Sako, Tamotsu Yamagami | 2000-05-16 |
| 5991257 | Disk with zones of tracks segmented into data frames, with tracks closer to the disk edge having more frames, and a data recording/reproducing method and apparatus using such disk | Tadaaki Nomoto, Shuji Uehara | 1999-11-23 |
| 5978336 | Optical disk finalization method and optical disk finalization apparatus | Norichika Mine, Toru Takeda, Tetsu Kimura | 1999-11-02 |
| 5978333 | Recording/reproducing apparatus and method | Toru Takeda, Tamotsu Yamagami | 1999-11-02 |
| 5966368 | Data recording disk | Yoichiro Sako, Tamotsu Yamagami | 1999-10-12 |
| 5917783 | Optical disk, a recording/reproducing apparatus and method for the optical disk | Toru Takeda, Tamotsu Yamagami | 1999-06-29 |
| 5901124 | Optical disk, a recording/reproducing apparatus and method for the optical disc | Toru Takeda, Tamotsu Yamagami | 1999-05-04 |
| 5886985 | Optical recording medium having a plurality of sectors separated by sync signals | Tamotsu Yamagami, Toru Takeda, Hiroshi Ogawa, Yoichiro Sako | 1999-03-23 |
| 5878024 | Optical disc, apparatus and method for recording and reproducing data | Tamotsu Yamagami, Toru Takeda, Hiroshi Ogawa, Yoichiro Sako | 1999-03-02 |
| 5835461 | Optical disc, apparatus and method for recording and reproducing data | Tamotsu Yamagami, Toru Takeda, Hiroshi Ogawa, Yoichiro Sako | 1998-11-10 |
| 5835478 | Optical disc having address information for recording and reproducing data at correct positions | Tamotsu Yamagami, Toru Takeda, Hiroshi Ogawa, Yoichiro Sako | 1998-11-10 |
| 5828639 | Recording/playback device and method thereof, and disc | Toru Takeda, Tamotsu Yamagami | 1998-10-27 |
| 5815486 | Optical disk, recording/reproducing apparatus and method for rapidly recording/reproducing data on/from an optical disk using gray coding | Toru Takeda, Tamotsu Yamagami | 1998-09-29 |
| 5805564 | Optical disk capable of detecting errors in address area and correcting errors in data area and recording method and apparatus therefor | Yoichiro Sako, Tamotsu Yamagami | 1998-09-08 |