Issued Patents 2011
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8059523 | Optical recording medium for writing data using multiple pulses | Kazuyo Umezawa, Seiji Morita, Koji Takazawa, Naoki Morishita, Shinichi Katsuda | 2011-11-15 |
| 7995442 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera +1 more | 2011-08-09 |
| 7949071 | Signal processing system and information storage medium | Yuji Nagai, Chosaku Noda, Kazuo Watabe, Akihito Ogawa, Kazuto Kuroda +7 more | 2011-05-24 |
| 7885173 | Write-once information recording medium and disk apparatus | Seiji Morita, Koji Takazawa, Kazuyo Umezawa, Naoki Morishita | 2011-02-08 |
| 7876666 | Write-once information recording medium and coloring matter material therefor | Seiji Morita, Koji Takazawa, Naoki Morishita | 2011-01-25 |
| 7869339 | Multi-layer optical disc, information recording method and information reproducing method | Kazuyo Umezawa, Seiji Morita, Koji Takazawa, Hideo Ando, Yasuaki Ootera +1 more | 2011-01-11 |
| 7864654 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera +1 more | 2011-01-04 |