Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6572957 | Magneto-optical recording medium with four layered recording layer having specific relative magnetic anisotropy values | — | 2003-06-03 |
| 6537637 | Multilayer optical disk | Masahiko Kaneko, Nobuhiko Umezu, Ariyoshi Nakaoki | 2003-03-25 |