Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6902835 | Perpendicular magnetic recording medium and magnetic recording apparatus | Takashi Hikosaka, Takeshi Iwasaki, Soichi Oikawa, Hiroshi Sakai, Kenji Shimizu +1 more | 2005-06-07 |
| 6846581 | Perpendicular magnetic recording medium and magnetic recording-reproducing apparatus using the same | Soichi Oikawa, Yoichiro Tanaka, Takashi Hikosaka | 2005-01-25 |