Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6632546 | Magneto-optical recording medium | Yoshihisa Chiba | 2003-10-14 |
| 6597647 | Optical recording medium having individual drive control information recorded in the maker recording area | Masayoshi Kanno | 2003-07-22 |