Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6627288 | Optical recording medium and porphycene compound | Akira Ogiso, Shinobu Inoue, Hisashi Tsukahara, Taizo Nishimoto, Tsutami Misawa | 2003-09-30 |
| 6576321 | Optical recording information medium | Norihiko Mihara | 2003-06-10 |