Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6633534 | Optical disk and optical disk drive | Yoshihiro Tosaki, Akira Matsubara, Toshiaki Kunieda | 2003-10-14 |
| 6551682 | Metal-containing azo compound and optical recording media | Yoshihiro Tosaki, Toshiaki Kunieda, Masatoshi Taniguchi, Noriko Kobayashi, Tomoyuki Hase | 2003-04-22 |