Issued Patents 2004
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6811850 | Optical information medium and its fabrication process | — | 2004-11-02 |
| 6775838 | Optical information medium and its testing method | Tsuyoshi Komaki, Naoki Hayashida | 2004-08-10 |
| 6731590 | Optical recording medium containing a substrate, an intermediate layer having therein an amorphous material, the intermediate layer having a reflective layer thereon | Hiroshi Shingai | 2004-05-04 |
| 6706360 | Optical recording medium | Hiroyasu Inoue | 2004-03-16 |
| 6689415 | Method and apparatus for preparing optical information medium | Tsuyoshi Komaki, Kenji Yamaga | 2004-02-10 |
| 6680899 | Optical information medium | Tsuyoshi Komaki, Naoki Hayashida, Toshifumi Tanaka | 2004-01-20 |