Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8040774 | Optical disk device and tilt correction method for optical disk device | Masahiro Birukawa | 2011-10-18 |
| 7957232 | Gap controller and optical information processor | Masahiro Birukawa | 2011-06-07 |
| 7948835 | Optical disc device, method for activating optical disc device, and control circuit | Masahiro Birukawa | 2011-05-24 |
| 7944799 | Optical information apparatus with gap control system | Masahiro Birukawa | 2011-05-17 |