Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8188795 | Phase comparator and reproduction signal processor using the same | Kouji Okamoto | 2012-05-29 |
| 6938162 | Optical disk, optical disk recording and reproducing apparatus, method for recording, reproducing and deleting data on optical disk, and information processing system | Takahiro Nagai, Hideshi Ishihara, Yuji Takagi, Takashi Yumiba, Mamoru Shoji +6 more | 2005-08-30 |