Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6636460 | Thermally-assisted magnetic recording method and thermally-assisted magnetic recorder | Junichi Akiyama, Akira Kikitsu | 2003-10-21 |
| 6606291 | Optical disk and optical disk drive | Akiko Hirao, Hideyuki Nishizawa, Toshihiko Nagase | 2003-08-12 |
| 6602620 | Magnetic recording apparatus, magnetic recording medium and manufacturing method thereof | Akira Kikitsu | 2003-08-05 |
| 6554972 | Information recording medium and its manufacturing method | Sumio Ashida, Keiichiro Yusu, Toshihiko Nagase, Naomasa Nakamura | 2003-04-29 |