Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6767610 | Magnetic tape having specific surface recording density and comprising a support having specific surface roughness | Masatoshi Takahashi, Toshiyuki Kitahara | 2004-07-27 |
| 6721123 | Magnetic tape recording medium, magnetic tape recording and reproducing apparatus, magnetic tape recording method and magnetic tape cassette | Kiyomi Ejiri, Kiyoo Morita | 2004-04-13 |