Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6740289 | Method of producing a composite magnetic sheet | Norihiko Ono, Shigeyoshi Yoshida, Osamu Ito | 2004-05-25 |
| 6723914 | Composite magnetic tape | Koji Kamei, Norihiko Ono | 2004-04-20 |