Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11356789 | Signal processing device, channel setting method, and speaker system | Tatsuya Tamaki, Yoshikazu Ohura, Yosuke Samura | 2022-06-07 |
| 8599667 | Multi-layer recordable optical disk, recording device, and recording method | — | 2013-12-03 |
| 8325572 | Optical disk recording apparatus and method for controlling optical disk recording | — | 2012-12-04 |
| 7969842 | Playback device and management information acquiring method | Masaaki Yamamoto, Atsushi Ishimaru | 2011-06-28 |
| 7876658 | Optical-disk device and record-control method with disc-management information writing features | — | 2011-01-25 |
| 7830769 | Recording apparatus and recording method | Masaaki Yamamoto | 2010-11-09 |