Issued Patents 2004
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6754143 | Optical information recording medium, and method and apparatus for recording/reproducing information thereon | Tetsuya Akiyama, Kenichi Nishiuchi | 2004-06-22 |
| 6711105 | Method and apparatus for writing and reading optical recording medium | Kenichi Nishiuchi | 2004-03-23 |
| 6707776 | Recording and reproducing method of optical information recording medium | Ken'ichi Nagata, Kenichi Nishiuchi, Eiji Ohno, Nobuo Akahira | 2004-03-16 |
| 6700849 | Method and apparatus for writing and reading optical recording medium | Kenichi Nishiuchi | 2004-03-02 |
| 6697313 | Optical information recording and reproducing system with overwrite capability and recording medium for use therewith | Ken'ichi Nagata, Kenichi Nishiuchi, Eiji Ohno, Nobuo Akahira | 2004-02-24 |
| 6683739 | Optical information recording and reproducing system with overwrite capability and recording medium for use therewith | Ken'ichi Nagata, Kenichi Nishiuchi, Eiji Ohno, Nobuo Akahira | 2004-01-27 |