Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6749956 | Magnetic recording medium | Akira Kikuchi | 2004-06-15 |
| 6709775 | Magnetic recording medium and production method thereof and magnetic recording device | Satoru Yoshimura, David Djulianto Djayaprawira, Hiroki Shoji | 2004-03-23 |