Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6975579 | Optical information recording medium and optical information recording and reproducing apparatus | Kenichi Nishiuchi, Eiji Ohno, Nobuo Akahira | 2005-12-13 |
| 6893698 | Optical information recording medium, optical measuring method and optical information recording/reproducing method | Kenji Narumi, Kenichi Nishiuchi, Rie Kojima, Takashi Nishihara, Noboru Yamada | 2005-05-17 |