Issued Patents 2004
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821707 | Optical information recording medium, producing method thereof and method of recording/erasing/reproducing information | Mayumi Uno, Noboru Yamada, Katsumi Kawahara, Hiroyuki Ohta, Eiji Ohno | 2004-11-23 |
| 6807142 | Optical information recording medium and method for initializing the same | Kenichi Nishiuchi, Noboru Yamada, Katsumi Kawahara | 2004-10-19 |
| 6795389 | Optical information recording medium with substrate and multiple information | Kenichi Nishiuchi | 2004-09-21 |
| 6771587 | Optical information recording medium with plural information layers | Kenichi Nishiuchi, Nobuo Akahira | 2004-08-03 |
| 6744724 | Recording and reproducing method for optical information recording medium and optical information recording medium | Noboru Yamada, Nobuo Akahira, Kenichi Nishiuchi | 2004-06-01 |
| 6707776 | Recording and reproducing method of optical information recording medium | Kenichi Nishiuchi, Eiji Ohno, Nobuo Akahira, Kenji Narumi | 2004-03-16 |
| 6697313 | Optical information recording and reproducing system with overwrite capability and recording medium for use therewith | Kenichi Nishiuchi, Eiji Ohno, Nobuo Akahira, Kenji Narumi | 2004-02-24 |
| 6683739 | Optical information recording and reproducing system with overwrite capability and recording medium for use therewith | Kenichi Nishiuchi, Eiji Ohno, Nobuo Akahira, Kenji Narumi | 2004-01-27 |