Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6830824 | Magnetic recording medium with multiple magnetic layers capable of being exchange coupled at elevated temperatures and magnetic recording apparatus | Junichi Akiyama, Katsutaro Ichihara, Tadashi Kai, Toshihiko Nagase, Tomoyuki Maeda | 2004-12-14 |
| 6826144 | Optical recording medium, optical recording and/or reproducing method, and optical recording and/or reproducing system | Katsutaro Ichihara, Toshihiko Nagase | 2004-11-30 |
| 6795380 | Optically-assisted magnetic recording head and optically-assisted magnetic recording apparatus | Junichi Akiyama, Tadashi Kai, Toshihiko Nagase, Tomoyuki Maeda | 2004-09-21 |
| 6777078 | Magnetic recording medium with L10 crystal grains including three or more elements | Tomoyuki Maeda, Toshihiko Nagase, Junichi Akiyama | 2004-08-17 |
| 6741524 | Thermally-assisted magnetic recording and reproducing device having an electron beam thermal source | Katsutaro Ichihara, Junichi Akiyama, Tsutomu Tanaka, Kuniyoshi Tanaka | 2004-05-25 |