Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6687213 | Optical recording medium having pre-formed land-prepits and method for producing same | Toshihiko Takishita, Masahiro Kato, Eiji Muramatsu, Shoji Taniguchi, Atsushi Yamaguchi | 2004-02-03 |