Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6805981 | Perpendicular magnetic recording medium and perpendicular magnetic recording-reproducing apparatus | Hideo Ogiwara, Takashi Hikosaka, Hiroshi Sakai, Kenji Shimizu | 2004-10-19 |
| 6754020 | Magnetic recording media and magnetic recording/reproduction apparatuses | Takashi Hikosaka, Futoshi Nakamura, Hideo Ogiwara | 2004-06-22 |
| 6713197 | Perpendicular magnetic recording medium and magnetic recording apparatus | Futoshi Nakamura, Takashi Hikosaka, Hideo Ogiwara | 2004-03-30 |
| 6699600 | Magnetic recording medium, method of manufacture therefor, and apparatus for magnetic recording and reproducing recordings | Kenji Shimizu, Akira Sakawaki, Hiroshi Sakai, Takashi Hikosaka | 2004-03-02 |
| 6682826 | Magnetic recording medium, method of manufacturing therefor, and magnetic read/write apparatus | Kenji Shimizu, Akira Sakawaki, Hiro Mochizuki, Hiroshi Sakai, Takashi Hikosaka | 2004-01-27 |