Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6388387 | Optical element | Takashi Hirano, Mitsunobu Sekiya, Naoki Sano, Tetsuo Nakayama | 2002-05-14 |
| 6380673 | Organic electroluminescence display | Mitsunobu Sekiya, Takashi Hirano, Tetsuo Nakayama, Naoki Sano | 2002-04-30 |