Patents by Inventor Hiroyuki Morikazu

Hiroyuki Morikazu 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 producing thin polarizing film
    Patent number: 10532526
    Abstract: The present invention provides a method of producing a thin polarizing film having both excellent optical characteristics and excellent in-plane uniformity. The method of producing a thin polarizing film includes stretching a thermoplastic resin substrate in a first direction, followed by formation of a polyvinyl alcohol-based resin layer on the thermoplastic resin substrate to prepare a laminate and shrinking and stretching the laminate in the first direction and a second direction, respectively.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: January 14, 2020
    Assignee: NITTO DENKO CORPORATION
    Inventors: Tatsuya Araki, Seiji Kondo, Hiroyuki Morikazu, Takashi Shimizu, Hiroaki Sawada
  • METHOD FOR PRODUCING THIN POLARIZING FILM
    Publication number: 20130163080
    Abstract: The present invention provides a method of producing a thin polarizing film having both excellent optical characteristics and excellent in-plane uniformity. The method of producing a thin polarizing film includes stretching a thermoplastic resin substrate in a first direction, followed by formation of a polyvinyl alcohol-based resin layer on the thermoplastic resin substrate to prepare a laminate and shrinking and stretching the laminate in the first direction and a second direction, respectively.
    Type: Application
    Filed: August 31, 2011
    Publication date: June 27, 2013
    Applicant: NITTO DENKO CORPORATION
    Inventors: Tatsuya Araki, Seiji Kondo, Hiroyuki Morikazu, Takashi Shimizu, Hiroaki Sawada