Issued Patents All Time
Showing 1–25 of 67 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8593930 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera +1 more | 2013-11-26 |
| 8531936 | Storage medium, reproducing method, and recording method | Seiji Morita, Koji Takazawa, Kazuyo Umezawa, Hideo Ando, Yasuaki Ootera +1 more | 2013-09-10 |
| 8509049 | Optical recording medium having intermediate layer of prescribed thickness and thickness range for use with 405nm laser | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera +1 more | 2013-08-13 |
| 8437242 | Optical recording medium for writing data using multiple pulses | Kazuyo Umezawa, Seiji Morita, Koji Takazawa, Naoki Morishita, Shinichi Katsuda | 2013-05-07 |
| 8422353 | Optical recording medium for writing data using multiple pulses | Kazuyo Umezawa, Seiji Morita, Koji Takazawa, Naoki Morishita, Shinichi Katsuda | 2013-04-16 |
| 8355306 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera +1 more | 2013-01-15 |
| 8339916 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera +1 more | 2012-12-25 |
| 8310913 | Optical recording medium capable of using wide ranges of linear velocity recording | Kazuyo Umezawa, Seiji Morita, Koji Takazawa, Naoki Morishita | 2012-11-13 |
| 8264931 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera +1 more | 2012-09-11 |
| 8218416 | Multi-layer optical disc, information recording method and information reproducing method | Kazuyo Umezawa, Seiji Morita, Koji Takazawa, Hideo Ando, Yasuaki Ootera +1 more | 2012-07-10 |
| 8184517 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera +1 more | 2012-05-22 |
| 8179764 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera +1 more | 2012-05-15 |
| 8179765 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera +1 more | 2012-05-15 |
| 8179763 | Optical disc, information recording method, and information reproducing method | Kazuyo Umezawa, Seiji Morita, Koji Takazawa, Hideo Ando, Yasuaki Ootera +1 more | 2012-05-15 |
| 8174948 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera +1 more | 2012-05-08 |
| 8169874 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera +1 more | 2012-05-01 |
| 8169873 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera +1 more | 2012-05-01 |
| 8169872 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera +1 more | 2012-05-01 |
| 8165001 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera +1 more | 2012-04-24 |
| 8165000 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera +1 more | 2012-04-24 |
| 8159921 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera +1 more | 2012-04-17 |
| 8159920 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera +1 more | 2012-04-17 |
| 8154971 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera +1 more | 2012-04-10 |
| 8154970 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera +1 more | 2012-04-10 |
| 8149674 | Optical recording medium, information recording method, and information reproducing method | Koji Takazawa, Seiji Morita, Kazuyo Umezawa, Naoki Morishita, Yasuaki Ootera +1 more | 2012-04-03 |