Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6815055 | Magnetic recording medium | Yuichiro Murayama, Nobuyoshi Asada | 2004-11-09 |
| 6744585 | Magnetic recording medium and method for reproducing magnetic recording | Tetsuji Nishida, Takeshi Nagata | 2004-06-01 |