Patents by Inventor Shunsuke Shuto

Shunsuke Shuto has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for manufacturing homeotropic alignment liquid crystal film
    Patent number: 6885423
    Abstract: A homeotropic alignment liquid crystal film used for an optical film of a visual display etc. is manufactured by a method in which a side chain type liquid crystal polymer comprising a monomer unit (a) containing a liquid crystalline fragment side chain and a monomer unit (b) containing a non-liquid crystalline fragment side chain is coated on a substrate on which a vertical alignment film is not prepared, and the liquid crystal polymer is fixed while maintaining an alignment state after the liquid crystal polymer is homeotropically aligned in liquid crystal state.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: April 26, 2005
    Assignee: Nitto Denko Corporation
    Inventors: Shunsuke Shuto, Sadahiro Nakanishi, Shusaku Nakano, Takashi Kamijo, Amane Mochizuki
  • Retardation plate, process for producing the same, and optical film
    Publication number: 20050037155
    Abstract: A retardation plate characterized by being obtained by laminating a homeotropic liquid-crystal film formed from a homeotropic liquid-crystal polymer of the side chain type or from a homeotropic liquid-crystalline composition comprising the side chain type liquid-crystal polymer and a photopolymerizable liquid-crystal compound to a stretched film having a retardation function. In the retardation plate, the retardation in the thickness direction can be regulated to a value in a wide range.
    Type: Application
    Filed: November 15, 2002
    Publication date: February 17, 2005
    Inventors: Shunsuke Shuto, Ikuo Kawamoto, Hironori Motomura
  • Optical film, and lighting device and image viewing display using the same
    Publication number: 20040189908
    Abstract: An optical film in which at least one layer of a cholesteric liquid crystal layer (1) and a retardation layer (2) are laminated, wherein an in-plane retardation of the retardation layer (2): (nx1−ny1)×Dre is 5 nm or less, and a virtual thickness direction retardation: RZch, and a thickness direction retardation: RZre have a relationship of RZre/(−RZch)=0.05 through 0.35, can be used as a brightness enhancement film, and further that provides an excellent visibility satisfactory also when observed not only from a front direction but from an oblique direction in image viewing displays, such as liquid crystal displays.
    Type: Application
    Filed: March 25, 2003
    Publication date: September 30, 2004
    Applicant: NITTO DENKO CORPORATION
    Inventors: Ikuo Kawamoto, Shunsuke Shuto, Sadahiro Nakanishi
  • Method for manufacturing homeotropic alignment liquid crystal film, hometropic alignment liquid crystalline composition and homeotropic alignment liquid crystal film
    Publication number: 20020036739
    Abstract: A homeotropic alignment liquid crystal film used for an optical film of a visual display etc. is manufactured by a method in which a side chain type liquid crystal polymer comprising a monomer unit (a) containing a liquid crystalline fragment side chain and a monomer unit (b) containing a non-liquid crystalline fragment side chain is coated on a substrate on which a vertical alignment film is not prepared, and the liquid crystal polymer is fixed while maintaining an alignment state after the liquid crystal polymer is homeotropically aligned in liquid crystal state.
    Type: Application
    Filed: November 21, 2001
    Publication date: March 28, 2002
    Inventors: Shunsuke Shuto, Sadahiro Nakanishi, Shusaku Nakano, Takashi Kamijo, Amane Mochizuki