Issued Patents 2004
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6818331 | Magnetic recording medium, production process thereof, and magnetic recording and reproducing apparatus | Akira Sakawaki, Hiro Mochizuki, Masato Kokubu, Hui Yang, Masakazu Kobayashi +1 more | 2004-11-16 |
| 6805981 | Perpendicular magnetic recording medium and perpendicular magnetic recording-reproducing apparatus | Hideo Ogiwara, Takashi Hikosaka, Soichi Oikawa, Hiroshi Sakai | 2004-10-19 |
| 6723458 | Magnetic recording medium, method of manufacture therefor, and magnetic read/write apparatus | Akira Sakawaki, Hui Yang, Hiro Mochizuki, Hiroshi Sakai, Takashi Hikosaka +1 more | 2004-04-20 |
| 6699600 | Magnetic recording medium, method of manufacture therefor, and apparatus for magnetic recording and reproducing recordings | Akira Sakawaki, Hiroshi Sakai, Takashi Hikosaka, Soichi Oikawa | 2004-03-02 |
| 6682826 | Magnetic recording medium, method of manufacturing therefor, and magnetic read/write apparatus | Akira Sakawaki, Hiro Mochizuki, Hiroshi Sakai, Soichi Oikawa, Takashi Hikosaka | 2004-01-27 |
| 6677061 | Magnetic recording medium, production process thereof, and magnetic recording and reproducing apparatus | Akira Sakawaki, Hiroshi Sakai | 2004-01-13 |