Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7773489 | Liquid crystal lens element and optical head device | Kouichi Murata, Takuji Nomura, Yoshiharu Ooi, Yuzuru Tanabe | 2010-08-10 |
| 7738344 | Liquid crystal lens element optical head device | Yoshiharu Ooi, Takuji Nomura, Toshimasa Kakiuchi, Yuzuru Tanabe | 2010-06-15 |
| 7388822 | Liquid crystal lens element and optical head device | Yoshiharu Ooi, Hiromasa Sato, Ryuichiro Shimizu, Takuji Nomura, Yuzuru Tanabe | 2008-06-17 |