Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6835438 | Magnetic recording tape | Kiyomi Ejiri | 2004-12-28 |
| 6821603 | Magnetic recording tape | Kiyomi Ejiri | 2004-11-23 |
| 6805942 | Magnetic recording tape | Hiroaki Doushita | 2004-10-19 |
| 6800356 | Magnetic recording medium | — | 2004-10-05 |