Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6804189 | Near field optical recording medium | Toshio Inase, Koyata Takahashi, Koji Katayama, Kenichi Sekimoto, Toru Futami +1 more | 2004-10-12 |
| 6798734 | Optical recording medium having address pits in the header region connecting with each other | Koyata Takahashi, Kenichi Sekimoto, Toru Futami, Shigeru Hiramatsu, Mutsumi Asano +2 more | 2004-09-28 |