Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12055742 | Polarization diffraction element and vector beam mode detection system using the same | Takeya Sakai, Moritsugu Sakamoto, Hiroshi Ono | 2024-08-06 |
| 11899316 | Terahertz wave control element | Tomoyuki Sasaki, Hiroshi Ono, Kohei Goto, Kimiaki Tsutsui | 2024-02-13 |
| 11560517 | Photoreactive liquid crystal composition, display element, optical element, method for manufacturing display element, and method for manufacturing optical element | Tomoyuki Sasaki, Hiroshi Ono, Kohei Goto | 2023-01-24 |
| 10752839 | Photoreactive liquid crystal composition, display element, optical element, method for manufacturing display element, and method for manufacturing optical element | Tomoyuki Sasaki, Hiroshi Ono, Kohei Goto | 2020-08-25 |
| 7300687 | Retardation film and process for producing the same | Takeya Sakai, Masao Uetsuki | 2007-11-27 |
| 6743487 | Retardation film and process for producing the same | Takeya Sakai, Masao Uetsuki | 2004-06-01 |
| 5155622 | Polarizing optical element and device using the same | Masao Uetsuki | 1992-10-13 |
| 4842969 | Transmittance modulation photomask, process for producing the same, and process for producing diffraction gratings using the same | Katsuya Fujisawa, Ichiro Matsuzaki, Masao Uetsuki | 1989-06-27 |