Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6790502 | Optically functional element and production method and application therefor | Hiroki Yamamoto, Takashi Naito, Ken Takahashi, Motoyasu Terao, Toshimichi Shintani +5 more | 2004-09-14 |
| 6699602 | Amorphous magnetic recording medium, process for producing the same and magnetic recording and reproduction apparatus | Mitsutoshi Honda, Hiroki Yamamoto, Takashi Naito, Tatsumi Hirano, Fumiyoshi Kirino +4 more | 2004-03-02 |
| 6689456 | Magnetic recording medium, a manufacturing method thereof, and a magnetic recording unit using thereof | Yuzo Kozono, Takashi Naito, Tatsumi Hirano, Hiroki Yamamoto, Takashi Namekawa +1 more | 2004-02-10 |