Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6770347 | Cyanine dye compound having tetracyanoquinodimethane compound as counter anion and optical recording medium containing the same | — | 2004-08-03 |
| 6713147 | Optical information-recording medium and optical information-recording method | Michihiro Shibata | 2004-03-30 |