Patents by Inventor Hirokatsu Shinano

Hirokatsu Shinano 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).

  • Compound and liquid crystal composition
    Patent number: 7785675
    Abstract: A compound represented by the following general formula (I). (In the formula, R1 is hydrogen or C1-8 alkyl; ring A is 1,4-phenylene, 1,4-trans-cyclohexylene, or 2,6-naphthylene; Z1 and Z2 each are —COO—, —OCO—, —CH2O—, —OCH2—, —CH2CH2—, —CH?CH—, —C?C—, or a single bond; m is 1 or 2; n is 0 or 1; X1 and X2 each are C1-3 alkyl or alkoxy or hydrogen, provided that when one of X1 and X2 is hydrogen, the other must not be hydrogen; Y1 and Y2 each are hydrogen, fluorine, or chlorine; Q is C1-8 saturated or unsaturated alkyl in which all or part of the hydrogen atoms are replaced by a halogen atom; and L is oxygen atom or a single bond.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: August 31, 2010
    Assignee: Adeka Corporation
    Inventors: Masatomi Irisawa, Tomohisa Miura, Hirokatsu Shinano
  • Liquid crystal composition
    Patent number: 7618554
    Abstract: Disclosed is a liquid crystal composition characterized by containing 15% by mass or more of a compound having a terminal structure represented by the general formula (I) below. This liquid crystal composition has high dielectric constant anisotropy (?) and low rotational viscosity (?1), and is thus suitably used as a liquid crystal composition for IPS liquid crystal displays or low voltage-driven TN liquid crystal displays. (I) (In the above formula, Q represents a saturated or unsaturated alkyl group having 1-8 carbon atoms which may be substituted by a halogen atom.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: November 17, 2009
    Assignee: Adeka Corporation
    Inventors: Masatomi Irisawa, Takahiro Otsuka, Hirokatsu Shinano
  • Novel compound and liquid crystal composition
    Publication number: 20090103041
    Abstract: A compound represented by the following general formula (I). (In the formula, R1 is hydrogen or C1-8 alkyl; ring A is 1,4-phenylene, 1,4-trans-cyclohexylene, or 2,6-naphthylene; Z1 and Z2 each are —COO—, —OCO—, —CH2O—, —OCH2—, —CH2CH2—, —CH|CH—, —C?C—, or a single bond; m is 1 or 2; n is 0 or 1; X1 and X2 each are C1-3 alkyl or alkoxy or hydrogen, provided that when one of X1 and X2 is hydrogen, the other must not be hydrogen; Y1 and Y2 each are hydrogen, fluorine, or chlorine; Q is C1-8 saturated or unsaturated alkyl in which all or part of the hydrogen atoms are replaced by a halogen atom; and L is oxygen atom or a single bond.
    Type: Application
    Filed: March 14, 2006
    Publication date: April 23, 2009
    Applicant: ADEKA CORPORATION
    Inventors: Masatomi Irisawa, Tomohisa Miura, Hirokatsu Shinano
  • Liquid Crystal Composition
    Publication number: 20080149890
    Abstract: Disclosed is a liquid crystal composition characterized by containing 15% by mass or more of a compound having a terminal structure represented by the general formula (I) below. This liquid crystal composition has high dielectric constant anisotropy (?) and low rotational viscosity (?1), and is thus suitably used as a liquid crystal composition for IPS liquid crystal displays or low voltage-driven TN liquid crystal displays. (I) (In the above formula, Q represents a saturated or unsaturated alkyl group having 1-8 carbon atoms which may be substituted by a halogen atom.
    Type: Application
    Filed: November 8, 2005
    Publication date: June 26, 2008
    Applicant: Adeka Corporation
    Inventors: Masatomi Irisawa, Takahiro Otsuka, Hirokatsu Shinano
  • Perfluoroallyloxy compound and liquid crystal composition containing the same
    Patent number: 7001647
    Abstract: A novel perfluoroallyloxy compound represented by general formula (I) and a liquid crystal composition containing the compound are disclosed.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: February 21, 2006
    Assignee: Asahi Denka Co., Ltd.
    Inventors: Hirokatsu Shinano, Takahiro Otsuka, Masatomi Irisawa
  • PERFLUOROALLYLOXY COMPOUND AND LIQUID CRYSTAL COMPOSITION CONTAINING THE COMPOUND
    Publication number: 20050161637
    Abstract: A novel perfluoroallyloxy compound represented by general formula (I) and a liquid crystal composition containing the compound are disclosed. The perfluoroallyloxy compound is useful as a liquid crystal material.
    Type: Application
    Filed: December 4, 2003
    Publication date: July 28, 2005
    Inventors: Hirokatsu Shinano, Takahiro Otsuka, Masatomi Irisawa