Patents by Inventor Yusuke Hiruma

Yusuke Hiruma 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).

  • OPTICAL FILM, POLARIZER PROTECTIVE FILM, TRANSFER BODY FOR POLARIZER PROTECTIVE FILM, POLARIZATION PLATE, IMAGE DISPLAY DEVICE, AND METHOD FOR MANUFACTURING POLARIZER PROTECTIVE FILM
    Publication number: 20220075227
    Abstract: Provided is an optical film which can promise to be thinner and makes it possible to enhance adhesion between a first functional layer and a second functional layer; and a polarizing plate and an image display device both of which include such an optical film.
    Type: Application
    Filed: December 27, 2019
    Publication date: March 10, 2022
    Inventors: Seiichi ISOJIMA, Takahisa NOMURA, Tomoyuki HORIO, Makoto NANAUMI, Kana HORII, Yusuke HIRUMA, Takashi KURODA
  • Liquid crystal display polarizing plate, method for producing liquid crystal display polarizing plate, and liquid crystal display
    Patent number: 8305524
    Abstract: A liquid crystal display polarizing plate that can reliably exhibit optical properties and be bonded to a liquid crystal cell without causing degradation of the optical properties. The liquid crystal display polarizing plate includes: a retardation film which has a substrate including a cellulose derivative and a retardation layer formed directly on the substrate and containing the cellulose derivative and a rod-like compound having refractive index anisotropy; a polarizer bonded to the retardation layer of the retardation film and including polyvinyl alcohol; and a polarizing plate protection film bonded to the polarizer.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: November 6, 2012
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yusuke Hiruma, Shoji Takeshige, Keiji Kashima
  • LIQUID CRYSTAL DISPLAY POLARIZING PLATE, METHOD FOR PRODUCING LIQUID CRYSTAL DISPLAY POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY
    Publication number: 20100328583
    Abstract: A liquid crystal display polarizing plate that can reliably exhibit optical properties and be bonded to a liquid crystal cell without causing degradation of the optical properties. The liquid crystal display polarizing plate includes: a retardation film which has a substrate including a cellulose derivative and a retardation layer formed directly on the substrate and containing the cellulose derivative and a rod-like compound having refractive index anisotropy; a polarizer bonded to the retardation layer of the retardation film and including polyvinyl alcohol; and a polarizing plate protection film bonded to the polarizer.
    Type: Application
    Filed: July 10, 2008
    Publication date: December 30, 2010
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Yusuke Hiruma, Shoji Takeshige, Keiji Kashima
  • OPTICAL FUNCTIONAL FILM AND PRODUCTION METHOD THEREOF
    Publication number: 20100159158
    Abstract: An optical functional film exhibiting optical biaxiality which has a high degree of freedom in optical characteristics design. The optical functional film which exhibits optical biaxiality and includes: a substrate; and an optical functional layer formed on the substrate and having a rodlike compound. The rodlike compound forms irregular-random homogeneous alignment in the optical functional layer.
    Type: Application
    Filed: May 14, 2007
    Publication date: June 24, 2010
    Inventors: Takayuki Shibata, Keiji Kashima, Shoji Takeshige, Kenji Shirai, Takeshi Haritani, Yusuke Hiruma, Runa Nakamura, Hiroki Nakagawa, Masanori Fukuda, Takashi Kuroda, Yuya Inomata