Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12222532 | Optical element and method for manufacturing the same | Kenta Sekikawa, So Ishido | 2025-02-11 |
| 12032193 | Optical element and method for manufacturing the same | Kenta Sekikawa, So Ishido | 2024-07-09 |
| 10048414 | Optical device, optical system, and imaging apparatus | So Ishido, Kenichi Shioya, Hiroki Hotaka | 2018-08-14 |
| 8420854 | Di(meth)acrylate compound, polymerizable liquid crystal composition, optical anisotropic material, optical element and optical information writing/reading device | Satoshi Okada, Makoto Hasegawa, Hiroshi Kumai | 2013-04-16 |
| 8007877 | Liquid crystal optical modulation element and optical head device | Kara Yoshida, Yuriko Kaida, Hiroshi Kumai | 2011-08-30 |
| 7901591 | Bifunctional polymerizable compound, liquid crystal composition, optical anisotropic material and optical element | Kazuhiko SHIONO, Hiroshi Kumai | 2011-03-08 |
| 7846515 | Liquid crystal optical modulation element and optical head device | Kara Yoshida, Yuriko Kaida, Hiroshi Kumai | 2010-12-07 |
| 7820250 | Liquid crystal optical modulation element and optical head device | Kara Yoshida, Yuriko Kaida, Hiroshi Kumai | 2010-10-26 |
| 7618690 | Polymerizable liquid crystal compound, liquid crystal composition, optical anisotropic material and optical element | Yuriko Kaida, Kara Yoshida | 2009-11-17 |
| 7442418 | Polymerizable liquid crystal compound, liquid crystal composition, optical anisotropic material and optical element | Yuriko Kaida, Hiroshi Kumai | 2008-10-28 |
| 7371438 | Polymerizable liquid crystal compound, liquid crystal composition and optical anisotropic material | Yuriko Kaida, Hiroshi Kumai | 2008-05-13 |
| 7081281 | Polymerizable liquid crystal compound, liquid crystal composition and optical anisotropic material | Hiroshi Kumai | 2006-07-25 |