Issued Patents All Time
Showing 51–59 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6761982 | Magnetic recording medium, production process and apparatus thereof, and magnetic recording and reproducing apparatus | Hiroshi Sakai | 2004-07-13 |
| 6723458 | Magnetic recording medium, method of manufacture therefor, and magnetic read/write apparatus | Kenji Shimizu, 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 | Kenji Shimizu, Hiroshi Sakai, Takashi Hikosaka, Soichi Oikawa | 2004-03-02 |
| 6686072 | Magnetic recording medium, process and apparatus for producing the same, and magnetic recording and reproducing apparatus | Masato Kokubu, Hiroshi Sakai | 2004-02-03 |
| 6682826 | Magnetic recording medium, method of manufacturing therefor, and magnetic read/write apparatus | Kenji Shimizu, Hiro Mochizuki, Hiroshi Sakai, Soichi Oikawa, Takashi Hikosaka | 2004-01-27 |
| 6680133 | Magnetic recording medium and sputtering target | Masakazu Kobayashi, Hiroshi Sakai | 2004-01-20 |
| 6677061 | Magnetic recording medium, production process thereof, and magnetic recording and reproducing apparatus | Kenji Shimizu, Hiroshi Sakai | 2004-01-13 |
| 6582758 | Process of producing a magnetic recording medium | Masato Kokubu, Ryuji Sakaguchi, Hiroshi Sakai | 2003-06-24 |
| 6274233 | Magnetic recording medium | Toshihiko Yoshikawa, Hiroshi Sakai, Tetsuya Osaka | 2001-08-14 |