Patents by Inventor Yohei KOSEKI

Yohei KOSEKI 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).

  • Liquid crystal aligning agent for photoalignment, liquid crystal alignment film and liquid crystal display device using it, and diamine and polymer
    Patent number: 10968392
    Abstract: Provided are a liquid crystal alignment film capable of being given anisotropy through photoalignment and stable to light, and a liquid crystal display device capable of keeping a high voltage holding ratio without degradation of display quality even when exposed to strong light for a long period of time. To provide these, used is a liquid crystal aligning agent for photoalignment which contains a polymer having a structural unit containing a photoreactive structure and in which the structural unit containing a photoreactive structure undergoes chemical reaction by heating.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: April 6, 2021
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Yohei Koseki, Takehiko Kanbara
  • Exterior member of electrical wire
    Patent number: 10868415
    Abstract: An exterior member of an electrical wire includes a first tubular body and a second tubular body. The first tubular body includes a hollow portion through which the electrical wire is inserted, an opening portion from which the electrical wire is drawn out, and a vent portion which is impermeable to moisture and permeable to air. The second tubular body is provided to extend from the first tubular body and to cover an outer periphery of the electrical wire drawn from the opening portion, and is made of a material more flexible than a material of the first tubular body.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: December 15, 2020
    Assignee: Yazaki Corporation
    Inventors: Yuto Ito, Yohei Koseki
  • Exterior Member of Electrical Wire
    Publication number: 20190222015
    Abstract: An exterior member of an electrical wire includes a first tubular body and a second tubular body. The first tubular body includes a hollow portion through which the electrical wire is inserted, an opening portion from which the electrical wire is drawn out, and a vent portion which is impermeable to moisture and permeable to air. The second tubular body is provided to extend from the first tubular body and to cover an outer periphery of the electrical wire drawn from the opening portion, and is made of a material more flexible than a material of the first tubular body.
    Type: Application
    Filed: January 15, 2019
    Publication date: July 18, 2019
    Applicant: Yazaki Corporation
    Inventors: Yuto Ito, Yohei Koseki
  • LIQUID CRYSTAL ALIGNING AGENT FOR PHOTOALIGNMENT, LIQUID CRYSTAL ALIGNMENT FILM AND LIQUID CRYSTAL DISPLAY DEVICE USING IT, AND DIAMINE AND POLYMER
    Publication number: 20190127643
    Abstract: Provided are a liquid crystal alignment film capable of being given anisotropy through photoalignment and stable to light, and a liquid crystal display device capable of keeping a high voltage holding ratio without degradation of display quality even when exposed to strong light for a long period of time. To provide these, used is a liquid crystal aligning agent for photoalignment which contains a polymer having a structural unit containing a photoreactive structure and in which the structural unit containing a photoreactive structure undergoes chemical reaction by heating.
    Type: Application
    Filed: October 30, 2018
    Publication date: May 2, 2019
    Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Yohei KOSEKI, Takehiko KANBARA