Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6500530 | Magnetic recording medium | Hiroyuki Katayama | 2002-12-31 |
| 6483653 | Magnetic recording medium and magnetic reproducing method | Hiroyuki Katayama | 2002-11-19 |
| 6400654 | Magneto-optical recording and reproducing device capable of suppressing cross talk | Hiroyuki Katayama | 2002-06-04 |
| 6367924 | Thermally assisted magnetic recording medium | Junichi Sato, Yasushi Ogimoto, Kunio Kojima, Masaki Hamamoto, Hiroyuki Katayama | 2002-04-09 |