Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8891034 | Liquid crystal optical element and optical pickup apparatus | Shinya Sato, Nobuhiro Sato | 2014-11-18 |
| 8098352 | Optical pickup apparatus and liquid crystal optical element | Naoki Fujii, Shuji Naka | 2012-01-17 |