Patents by Inventor Tatsuya NAGI

Tatsuya NAGI 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, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY ELEMENT
    Publication number: 20210371664
    Abstract: The present invention relates to a polymer composition which contains (A) a photosensitive side-chain polymer that exhibits liquid crystallinity in a predetermined temperature range and has a repeating unit comprising a vertically aligning group, and (B) an organic solvent. The present invention provides: a liquid crystal alignment film which has excellent tilt angle characteristics, while being provided with alignment controllability with high efficiency; a polymer composition which enables the achievement of this liquid crystal alignment film; a twisted nematic liquid crystal display element; and a vertical field switching mode liquid crystal display element.
    Type: Application
    Filed: August 3, 2021
    Publication date: December 2, 2021
    Applicant: NISSAN CHEMICAL CORPORATION
    Inventor: Tatsuya NAGI
  • Liquid crystal aligning agent, liquid crystal alignment film, and liquid crystal display element
    Patent number: 11111387
    Abstract: The present invention relates to a polymer composition which contains (A) a photosensitive side-chain polymer that exhibits liquid crystallinity in a predetermined temperature range and has a repeating unit comprising a vertically aligning group, and (B) an organic solvent. The present invention provides: a liquid crystal alignment film which has excellent tilt angle characteristics, while being provided with alignment controllability with high efficiency; a polymer composition which enables the achievement of this liquid crystal alignment film; a twisted nematic liquid crystal display element; and a vertical field switching mode liquid crystal display element.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: September 7, 2021
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventor: Tatsuya Nagi
  • LIQUID CRYSTAL ALIGNING AGENT, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY ELEMENT
    Publication number: 20180244922
    Abstract: The present invention relates to a polymer composition which contains (A) a photosensitive side-chain polymer that exhibits liquid crystallinity in a predetermined temperature range and has a repeating unit comprising a vertically aligning group, and (B) an organic solvent. The present invention provides: a liquid crystal alignment film which has excellent tilt angle characteristics, while being provided with alignment controllability with high efficiency; a polymer composition which enables the achievement of this liquid crystal alignment film; a twisted nematic liquid crystal display element; and a vertical field switching mode liquid crystal display element.
    Type: Application
    Filed: July 29, 2016
    Publication date: August 30, 2018
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventor: Tatsuya NAGI