Issued Patents All Time
Showing 76–85 of 85 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7914969 | Storage medium, reproducing method, and recording method | Hideo Ando, Seiji Morita, Koji Takazawa, Naoki Morishita, Kazuyo Umezawa | 2011-03-29 |
| 7869339 | Multi-layer optical disc, information recording method and information reproducing method | Kazuyo Umezawa, Seiji Morita, Koji Takazawa, Hideo Ando, Naomasa Nakamura +1 more | 2011-01-11 |
| 7864654 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Hideo Ando +1 more | 2011-01-04 |
| 7778144 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Hideo Ando +1 more | 2010-08-17 |
| 7715304 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Hideo Ando +1 more | 2010-05-11 |
| 7643397 | Phase-change optical recording media and optical recording-reproducing apparatus | Tsukasa Nakai, Sumio Ashida, Keiichiro Yusu, Nobuhisa Yoshida, Koji Takazawa +1 more | 2010-01-05 |
| 7400570 | Optical disk | Naoki Morishita, Seiji Morita | 2008-07-15 |
| 7283459 | Optical disk and optical disk apparatus | — | 2007-10-16 |
| 6800224 | Production process of optical disc and optical disc produced thereby | Naomasa Nakamura | 2004-10-05 |
| 6671242 | Optical disk, method of manufacturing the same and optical disk apparatus | — | 2003-12-30 |