Nippon Oil Company

Nippon Oil Corporation

Nippon Mitsubishi Oil Corporation

Nippon Mitsubishi Oil Company

Yasushi Satoh

Hitoshi Mazaki

Takehiro Toyooka

Yoshihiro Kobori

Tadahiro Kaminade

Yoshihiro Kumagai

Teruaki Yamanashi

A main chain type liquid crystalline polyester comprises at least two units selected from aromatic diol units, aromtic dicarboxylic acid units, and aromatic hydroxycarboxylic acid units as essential units and a structural unit containing a cationically polymerizable group selected from the group consisting of vinyloxy groups, epoxy groups, and oxetany groups in at least one of the terminal ends of the main chain.

Main chain type liquid crystalline polyester, liquid crystalline composition, method for producing liquid crystal film and optical film, and display having optical film

A complex diffraction device, which is excellent in designability, easy in setting the diffraction angle, adaptable to size increase, and easy to handle by adding a diffraction function resulting from an uneven pattern to the diffraction device comprising a liquid crystalline layer where the helical orientation of the smectic liquid crystal phase having a helical structure is maintained.

Complex diffraction device

Film for optical elements

A compensating film capable of compensating both twist structure based on a liquid crystal cell and refractive index anisotropy to diminish the visual angle dependence of a liquid crystal display is provided. The film is formed using a discotic liquid crystalline material and the orientation form of the discotic liquid crystal is a twisted orientation.

Liquid crystalline optical film, compensating film for liquid crystal

Growing community of inventors

Yokohama, Japan

Yasushi Satoh