Issued Patents 2002
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6487151 | Optical information recording and reproducing system with overwrite capability and recording medium for use therewith | Kenichi Nishiuchi, Eiji Ohno, Nobuo Akahira, Kenji Narumi | 2002-11-26 |
| 6456584 | Optical information recording medium comprising a first layer having a phase that is reversibly changeable and a second information layer having a phase that is reversibly changeable | Kenichi Nishiuchi, Noboru Yamada, Nobuo Akahira | 2002-09-24 |
| 6449239 | Optical information recording medium with thermal diffusion layer | Mayumi Uno, Noboru Yamada, Hideo Kusada | 2002-09-10 |
| 6434095 | Optical information recording medium, manufacturing method therefor, manufacturing apparatus therefor, and optical information recording and reproducing apparatus | Kenichi Nishiuchi, Nobuo Akahira | 2002-08-13 |
| 6388984 | Optical information recording medium and its recording and reproducing method | Hideki Kitaura, Noboru Yamada, Kenichi Nishiuchi, Shigeaki Furukawa | 2002-05-14 |