Patents by Inventor Akiko TAKEDA

Akiko TAKEDA 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).

  • Publication number: 20230393476
    Abstract: A photosensitive element according to the present disclosure can be produced by a method including a step of forming a photosensitive layer on a support film using a photosensitive resin composition and a step of bonding a winding outer surface of a protective film having a roll shape onto the photosensitive layer, and includes a support film, a photosensitive layer provided on one surface of the support film, and a protective film provided on a surface of the photosensitive layer opposite to the support film, and the protective film has a weld line on a surface opposite to the photosensitive layer.
    Type: Application
    Filed: June 15, 2021
    Publication date: December 7, 2023
    Inventors: Yosuke KAGUCHI, Akiko TAKEDA, Masakazu KUME
  • Publication number: 20230288802
    Abstract: A photosensitive resin composition according to an embodiment of the present disclosure contains: a binder polymer including a structural unit derived from a (meth)acrylate compound having a dicyclopentanyl group; a photopolymerizable compound; a photopolymerization initiator; a sensitizer having an absorption at 340 to 430 nm; and an ultraviolet absorber, in which a molar absorption coefficient of the ultraviolet absorber for light at a wavelength of 365 nm is in a range of 500 to 50000 L/(mol·cm).
    Type: Application
    Filed: April 27, 2021
    Publication date: September 14, 2023
    Inventors: Akiko TAKEDA, Tetsuya KATO
  • Publication number: 20230273518
    Abstract: An aspect of the present disclosure relates to a photosensitive resin composition containing a binder polymer, a photopolymerizable compound, and a photopolymerization initiator, in which the binder polymer includes a structural unit derived from a (meth)acrylate compound having a dicyclopentanyl group, and a weight molecular weight of the binder polymer is 7500 to 23000.
    Type: Application
    Filed: April 27, 2021
    Publication date: August 31, 2023
    Inventors: Tetsuya KATO, Akiko TAKEDA, Yutaka KAWAKAMI
  • Publication number: 20230161248
    Abstract: A photosensitive film containing (A) a binder polymer, (B) a photopolymerizable compound, (C) a photopolymerization initiator, and (D) a pyrazoline compound, in which a thickness of the photosensitive film is 20 ?m or less. A photosensitive element 1 including a support 2, and a photosensitive resin layer 3 disposed on the support 2, in which the photosensitive resin layer 3 is the photosensitive film. A method for producing a laminate, the method including a disposing step of disposing a photosensitive resin layer on a base material by using the above-described photosensitive film or the photosensitive element 1, a step of photo-curing a part of the photosensitive resin layer, and a step of removing at least a part of an uncured area of the photosensitive resin layer to form a cured product pattern.
    Type: Application
    Filed: March 7, 2022
    Publication date: May 25, 2023
    Inventors: Mao NARITA, Keishi ONO, Shiho TANAKA, Akiko TAKEDA, Yusaku WATANABE