Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6818331 | Magnetic recording medium, production process thereof, and magnetic recording and reproducing apparatus | Akira Sakawaki, Kenji Shimizu, Hiro Mochizuki, Hui Yang, Masakazu Kobayashi +1 more | 2004-11-16 |
| 6686072 | Magnetic recording medium, process and apparatus for producing the same, and magnetic recording and reproducing apparatus | Akira Sakawaki, Hiroshi Sakai | 2004-02-03 |