Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7719657 | Liquid crystal lens element and optical head device | Yoshiharu Ooi, Yuzuru Tanabe, Hiromasa Sato, Takuji Nomura | 2010-05-18 |
| 7388822 | Liquid crystal lens element and optical head device | Yoshiharu Ooi, Hiromasa Sato, Takuji Nomura, Yuzuru Tanabe, Mitsuo Oosawa | 2008-06-17 |