Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8004956 | Optical disc drive, optical pickup and optical component used therefor | Fumio Isshiki | 2011-08-23 |
| 7936658 | Photodetector, diffraction grating, optical pickup and optical disc apparatus | Tomoto Kawamura, Kunikazu Ohnishi, Masayuki Inoue | 2011-05-03 |