Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6623792 | Method for producing optical recording medium | — | 2003-09-23 |
| 6611492 | Optical recording medium and master disc for preparation thereof | Somei Endo, Manabu Sato | 2003-08-26 |
| 6597655 | Optical recording medium having wobbling groove extending along the tracks | Manabu Sato, Somei Endo | 2003-07-22 |
| 6521317 | Optical recording medium | Sohmei Endoh, Manabu Satoh | 2003-02-18 |