Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6833969 | Master information carrier for magnetic transfer | Toshihiro Usa | 2004-12-21 |
| 6816327 | Master information carrier for magnetic transfer and magnetic transfer method | Masakazu Nishikawa, Kazuhiro Niitsuma, Tadashi Yasunaga, Toshihiro Usa | 2004-11-09 |
| 6790534 | Magnetic transfer master medium, magnetic transfer method, and magnetic transfer master medium forming method | Masakazu Nishikawa | 2004-09-14 |
| 6731440 | Method and apparatus for magnetic transfer | Makoto Nagao, Masakazu Nishikawa | 2004-05-04 |