Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE38587 | Magnetic recording medium | Iwao Okamoto, Masayoshi Shinohara | 2004-09-14 |
| 6713196 | Magnetic recording medium and magnetic recording device | — | 2004-03-30 |
| 6689495 | Magnetic recording medium and magnetic storage apparatus | Hisateru Sato, E. Noel Abarra, Iwao Okamoto, Yoshifumi Mizoshita | 2004-02-10 |