Patents by Inventor Takuto Tokuda

Takuto Tokuda 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: 20230348748
    Abstract: A black resin composition is provided that presents an achromatic reflected color tone, has a high visible-light-blocking ability and a high near-infrared penetrability, and exhibits a smaller amount of transmitted scattered light, where the black resin composition includes (A) a resin, (B) a colorant, and (C) an organic solvent, wherein the black composition includes a red pigment and a blue pigment as (B) the colorant, wherein amount of the red pigment is 20 to 80 wt % with respect to the total amount of (B) the colorant, and wherein crystalline size of the red pigment in a colored film composed of a cured product of the black resin composition is 5 nm or more and 25 nm or less, as calculated from a half bandwidth determined from a main peak of an X-ray diffraction spectrum obtained using CuK? rays as an X-ray source.
    Type: Application
    Filed: February 16, 2021
    Publication date: November 2, 2023
    Applicant: Toray Industries, Inc.
    Inventors: Yoshihiko Inoue, Kazuki Nanbu, Takuto Tokuda
  • Patent number: 11634555
    Abstract: A colored resin composition containing an alkali-soluble resin (A), a colorant (B), an organic solvent (C), and a photosensitizer (D), the colored resin composition containing at least a zirconia compound particle as the colorant (B), wherein the zirconia compound particle contains zirconium nitride having a crystallite size of 10 nm or more and 60 nm or less, and the crystallite size is determined from a half width of a peak derived from a (111) plane in an X-ray diffraction spectrum using a CuK? ray as an X-ray source. The present invention provides a highly sensitive colored resin composition by improving light transmissivity in the ultraviolet region (wavelength 365 nm) generally used in photolithography and by improving a light shielding property in the visible region.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: April 25, 2023
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Yoshihiko Inoue, Kazuki Nanbu, Takuto Tokuda, Ryosuke Aihara
  • Publication number: 20210179809
    Abstract: Provided is a colored resin composition including: a resin (A); a colorant (B); and an organic solvent (C), the colored resin composition including at least a bisbenzofuranone-based pigment as the colorant (B), wherein the bisbenzofuranone-based pigment has a crystallite size of 10 nm or more and 25 nm or less in a colored film consisting of a cured product of the colored resin composition, the colored resin composition that has excellent light resistance, a high visible light shielding property, and high near-infrared transmissivity, and causes little transmitted scattered light.
    Type: Application
    Filed: May 28, 2019
    Publication date: June 17, 2021
    Applicant: Toray Industries, Inc.
    Inventors: Yoshihiko Inoue, Kazuki Nanbu, Takuto Tokuda
  • Publication number: 20210115219
    Abstract: A colored resin composition containing an alkali-soluble resin (A), a colorant (B), an organic solvent (C), and a photosensitizer (D), the colored resin composition containing at least a zirconia compound particle as the colorant (B), wherein the zirconia compound particle contains zirconium nitride having a crystallite size of 10 nm or more and 60 nm or less, and the crystallite size is determined from a half width of a peak derived from a (111) plane in an X-ray diffraction spectrum using a CuK? ray as an X-ray source. The present invention provides a highly sensitive colored resin composition by improving light transmissivity in the ultraviolet region (wavelength 365 nm) generally used in photolithography and by improving a light shielding property in the visible region.
    Type: Application
    Filed: September 21, 2018
    Publication date: April 22, 2021
    Applicant: Toray Industries, Inc.
    Inventors: Yoshihiko Inoue, Kazuki Nanbu, Takuto Tokuda, Ryosuke Aihara