Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6805981 | Perpendicular magnetic recording medium and perpendicular magnetic recording-reproducing apparatus | Takashi Hikosaka, Soichi Oikawa, Hiroshi Sakai, Kenji Shimizu | 2004-10-19 |
| 6754020 | Magnetic recording media and magnetic recording/reproduction apparatuses | Takashi Hikosaka, Futoshi Nakamura, Soichi Oikawa | 2004-06-22 |
| 6713197 | Perpendicular magnetic recording medium and magnetic recording apparatus | Futoshi Nakamura, Takashi Hikosaka, Soichi Oikawa | 2004-03-30 |