Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6969764 | Optical recording medium and novel azaporphyrin compounds | Akira Ogiso, Shinobu Inoue, Taizo Nishimoto, Hisashi Tsukahara, Tsutami Misawa +3 more | 2005-11-29 |
| 6576321 | Optical recording information medium | Tadashi Koike | 2003-06-10 |