Issued Patents All Time
Showing 76–81 of 81 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7747139 | Randomly accessible visual information recording medium and recording method, and reproducing device and reproducing method | Kazuhiko Nakane, Masaaki Shimada, Yoshihisa Yamada | 2010-06-29 |
| 7747138 | Randomly accessible visual information recording medium and recording method, and reproducing device and reproducing method | Kazuhiko Nakane, Masaaki Shimada, Yoshihisa Yamada | 2010-06-29 |
| 7742684 | Randomly accessible visual information recording medium and recording method, and reproducing device and reproducing method | Kazuhiko Nakane, Masaaki Shimada, Yoshihisa Yamada | 2010-06-22 |
| 7706668 | Video information recording medium which can be accessed at random, recording method, reproduction device, and reproducing method | Kazuhiko Nakane, Masaaki Shimada, Yoshihisa Yamada | 2010-04-27 |
| 6947359 | Optical disk device for data defect detection and use | Eiji Yokoyama | 2005-09-20 |
| 6633522 | Focus pull-in method and optical disk device | — | 2003-10-14 |