Patents by Inventor Hiroaki NAKATSUGAWA

Hiroaki NAKATSUGAWA 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, polarizing plate, image display device, polymerizable compound, and method for manufacturing 1,4-cyclohexanedicarboxylic acid monoaryl ester
    Patent number: 10782567
    Abstract: An object of the present invention is to provide an optical film having an optically-anisotropic layer having excellent durability, a polarizing plate and an image display device in which the optical film is used, a polymerizable compound used in the optical film, and a method for manufacturing a 1,4-cyclohexanedicarboxylic acid monoaryl ester. The optical film of the present invention is an optical film having at least an optically-anisotropic layer, in which the optically-anisotropic layer is a layer obtained by polymerizing a polymerizable liquid crystal composition containing a polymerizable compound which has a specific structure, a liquid crystal compound which has a specific structure, and a polymerization initiator.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: September 22, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Keita Takahashi, Hiroshi Matsuyama, Naozumi Shiraiwa, Taiji Katsumata, Yuuta Fujino, Hiroshi Sato, Kiyoshi Takeuchi, Hiroyuki Hagio, Aiko Yoshida, Hiroaki Nakatsugawa
  • OPTICAL FILM, POLARIZING PLATE, IMAGE DISPLAY DEVICE, POLYMERIZABLE COMPOUND, AND METHOD FOR MANUFACTURING 1,4-CYCLOHEXANEDICARBOXYLIC ACID MONOARYL ESTER
    Publication number: 20180267368
    Abstract: An object of the present invention is to provide an optical film having an optically-anisotropic layer having excellent durability, a polarizing plate and an image display device in which the optical film is used, a polymerizable compound used in the optical film, and a method for manufacturing a 1,4-cyclohexanedicarboxylic acid monoaryl ester. The optical film of the present invention is an optical film having at least an optically-anisotropic layer, in which the optically-anisotropic layer is a layer obtained by polymerizing a polymerizable liquid crystal composition containing a polymerizable compound which has a specific structure, a liquid crystal compound which has a specific structure, and a polymerization initiator.
    Type: Application
    Filed: May 21, 2018
    Publication date: September 20, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Keita TAKAHASHI, Hiroshi MATSUYAMA, Naozumi SHIRAIWA, Taiji KATSUMATA, Yuuta FUJINO, Hiroshi SATO, Kiyoshi TAKEUCHI, Hiroyuki HAGIO, Aiko YOSHIDA, Hiroaki NAKATSUGAWA