Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821618 | Magnetic recording medium and process for producing the same | Jun Koujima, Kenichi Nakata, Takanori Doi, Masaaki Maekawa, Kousaku Tamari | 2004-11-23 |
| 6753077 | Magnetic recording medium and process for producing the same | Kenichi Nakata, Kousaku Tamari, Jun Koujima | 2004-06-22 |
| 6746786 | Magnetic recording medium and process for producing the same | Yasuo Kakihara, Mitsuru Matsuura, Setsuo Yamamoto | 2004-06-08 |