Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6909687 | Optical pickup with a diffraction element consist of six regions providing spatial variation corresponding to a focas state | Kazushi Mori, Atsushi Tajiri, Yasuaki Inoue, Yasuhiro Ueda, Masayuki Shono +1 more | 2005-06-21 |