Patents by Inventor Shoma Hinata

Shoma Hinata 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: 20210013265
    Abstract: The disclosure provides a light emitting device including a display element and an infrared light emitting element that are disposed on an insulating layer; and a reducer configured to reduce a quantity of light that is emitted in a direction of the display element from the infrared light emitting element in plan view from a direction perpendicular to the insulating layer.
    Type: Application
    Filed: July 9, 2020
    Publication date: January 14, 2021
    Inventors: Shoma Hinata, Akira Okita
  • Publication number: 20210014393
    Abstract: A light emitting device including a first light emitting element disposed on a main surface of a substrate, and a first lens fixed to the substrate and overlapping a center of a first light-emission region of the first light emitting element in plan view in a direction perpendicular to the main surface. In the plan view in the direction perpendicular to the main surface, the center of the first light-emission region and a center of the first lens are separated from each other by a first distance in a direction parallel to the main surface.
    Type: Application
    Filed: July 7, 2020
    Publication date: January 14, 2021
    Inventors: Shoma Hinata, Yojiro Matsuda, Hiroaki Sano, Hidekazu Takahashi, Yoshihito Harada
  • Publication number: 20200111964
    Abstract: An organic compound represented by formula (1) and an organic compound represented by formula (2). These organic compounds provide high color purity. In formulae (1) and (2), R1 to R24 are each independently selected from the group consisting of a hydrogen atom and a substituent.
    Type: Application
    Filed: September 27, 2019
    Publication date: April 9, 2020
    Inventors: Yosuke Nishide, Hirokazu Miyashita, Naoki Yamada, Jun Kamatani, Shoma Hinata
  • Patent number: 10416581
    Abstract: An electrophotographic photosensitive member with suppressed potential variation even in the case that a protective layer including a cured material of a composition having a polymerizable functional group is used is provided. An electrophotographic photosensitive member including a support, a charge generation layer, a charge transport layer containing a charge transporting material, and a protective layer, in the order presented, wherein the charge transport layer contains a polycarbonate resin having a structure selected from a group A and a structure selected from a group B, and the protective layer includes a cured material of a composition containing a compound having at least a functional group selected from chain-polymerizable functional groups and sequential polymerizable functional groups.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: September 17, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yota Ito, Tsutomu Nishida, Shoma Hinata, Tatsuya Yamaai, Akira Sakakibara, Daisuke Miura
  • Patent number: 10401746
    Abstract: An electrophotographic photosensitive member includes a support member, a charge generating layer containing a phthalocyanine pigment as a charge generating material, a charge transport layer containing a charge transporting material in this order. The charge generating layer has a thickness of less than 200 nm, and the phthalocyanine pigment includes phthalocyanine crystalline particles having a particle size distribution and satisfies a requirement that the volume average of the products of ?i and ?i is 0.31 or more.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: September 3, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kaname Watariguchi, Shoma Hinata, Kazuko Araki, Tsutomu Nishida, Jumpei Kuno, Masataka Kawahara, Yuto Ito, Isao Kawata
  • Publication number: 20190243260
    Abstract: An electrophotographic photosensitive member including: a support, an undercoat layer formed above the support, a charge generation layer formed on the undercoat layer, and a charge transport layer formed above the charge generation layer, wherein the undercoat layer contains a polyamide resin and a titanium oxide particle which is surface-treated with a compound represented by Formula (1): when a volume of the titanium oxide particles to a volume of the polyamide resin in the undercoat layer is a, and an average primary particle diameter of the titanium oxide particles is b [?m], the following Equation (A) is satisfied: Equation (A): 14.0?a/b?19.1; and the charge generation layer contains a charge generating material and a thermoplastic resin having a hydroxyl group and a hydroxyl number of 50 mgKOH/g or more.
    Type: Application
    Filed: February 6, 2019
    Publication date: August 8, 2019
    Inventors: Yota Ito, Jumpei Kuno, Shoma Hinata
  • Publication number: 20190121251
    Abstract: An electrophotographic photosensitive member includes a support, a charge generating layer containing a charge generation material, and a charge transporting layer containing a charge transport material in this order, the charge transporting layer serving as a surface layer. The charge transporting layer contains a polycarbonate resin having a particular structural unit.
    Type: Application
    Filed: December 21, 2018
    Publication date: April 25, 2019
    Inventors: Tsutomu Nishida, Akira Sakakibara, Daisuke Miura, Yota Ito, Shoma Hinata, Tatsuya Yamaai, Nobuo Kosaka
  • Patent number: 10209637
    Abstract: An electrophotographic photosensitive member includes a support, a charge generating layer containing a charge generation material, and a charge transporting layer containing a charge transport material in this order, the charge transporting layer serving as a surface layer. The charge transporting layer contains a polycarbonate resin having a particular structural unit.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: February 19, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsutomu Nishida, Akira Sakakibara, Daisuke Miura, Yota Ito, Shoma Hinata, Tatsuya Yamaai, Nobuo Kosaka
  • Publication number: 20180314171
    Abstract: An electrophotographic photosensitive member includes a support member, a charge generating layer containing a phthalocyanine pigment as a charge generating material, a charge transport layer containing a charge transporting material in this order. The charge generating layer has a thickness of less than 200 nm, and the phthalocyanine pigment includes phthalocyanine crystalline particles having a particle size distribution and satisfies a requirement that the volume average of the products of ?i and ?i is 0.31 or more.
    Type: Application
    Filed: April 24, 2018
    Publication date: November 1, 2018
    Inventors: Kaname Watariguchi, Shoma Hinata, Kazuko Araki, Tsutomu Nishida, Jumpei Kuno, Masataka Kawahara, Yuto Ito, Isao Kawata
  • Patent number: 9921499
    Abstract: An electrophotographic photosensitive member includes a substrate and a photosensitive layer containing a phthalocyanine pigment. The crystalline particles of the phthalocyanine pigment have a crystallite correlation length r and a particle size R of 400 nm or less, and a parameter k defined by r/R is in the range of 0.17 to 0.42.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: March 20, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kaname Watariguchi, Shoma Hinata, Kazuko Sakuma, Tsutomu Nishida, Jumpei Kuno, Hirofumi Kumoi, Masato Tanaka, Masataka Kawahara, Yuto Ito, Isao Kawata
  • Publication number: 20180059558
    Abstract: An electrophotographic photosensitive member with suppressed potential variation even in the case that a protective layer including a cured material of a composition having a polymerizable functional group is used is provided. An electrophotographic photosensitive member including a support, a charge generation layer, a charge transport layer containing a charge transporting material, and a protective layer, in the order presented, wherein the charge transport layer contains a polycarbonate resin having a structure selected from a group A and a structure selected from a group B, and the protective layer includes a cured material of a composition containing a compound having at least a functional group selected from chain-polymerizable functional groups and sequential polymerizable functional groups.
    Type: Application
    Filed: August 3, 2017
    Publication date: March 1, 2018
    Inventors: Yota Ito, Tsutomu Nishida, Shoma Hinata, Tatsuya Yamaai, Akira Sakakibara, Daisuke Miura
  • Publication number: 20180031985
    Abstract: An electrophotographic photosensitive member includes a support, a charge generating layer containing a charge generation material, and a charge transporting layer containing a charge transport material in this order, the charge transporting layer serving as a surface layer. The charge transporting layer contains a polycarbonate resin having a particular structural unit.
    Type: Application
    Filed: July 28, 2017
    Publication date: February 1, 2018
    Inventors: Tsutomu Nishida, Akira Sakakibara, Daisuke Miura, Yota Ito, Shoma Hinata, Tatsuya Yamaai, Nobuo Kosaka
  • Patent number: 9864284
    Abstract: An electrophotographic photosensitive member has a support, a charge generation layer, and a charge transport layer in this order, the charge transport layer containing a charge transport material. The charge transport layer is a surface layer of the electrophotographic photosensitive member and contains a polycarbonate resin having a structural unit selected from group A and a structural unit selected from group B.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: January 9, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masataka Kawahara, Hirotoshi Uesugi, Akihiro Maruyama, Hirofumi Kumoi, Masato Tanaka, Hiroyuki Tomono, Shoma Hinata, Yota Ito, Daisuke Miura, Takashi Anezaki, Tatsuya Yamaai, Kazumichi Sugiyama
  • Patent number: 9753385
    Abstract: An electrophotographic photosensitive member has a support, a charge generation layer, and a charge transport layer in this order, the charge transport layer containing a charge transport material. The charge transport layer is a surface layer of the electrophotographic photosensitive member and contains a polycarbonate resin having a structural unit selected from group A and a structural unit selected from group B (groups A and B defined in the disclosure).
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: September 5, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yota Ito, Daisuke Miura, Shoma Hinata, Hiroyuki Tomono, Takashi Anezaki, Tatsuya Yamaai, Kazumichi Sugiyama, Masataka Kawahara, Hirotoshi Uesugi, Akihiro Maruyama, Hirofumi Kumoi, Masato Tanaka
  • Publication number: 20170123330
    Abstract: An electrophotographic photosensitive member includes a substrate and a photosensitive layer containing a phthalocyanine pigment. The crystalline particles of the phthalocyanine pigment have a crystallite correlation length r and a particle size R of 400 nm or less, and a parameter k defined by r/R is in the range of 0.17 to 0.42.
    Type: Application
    Filed: October 26, 2016
    Publication date: May 4, 2017
    Inventors: Kaname Watariguchi, Shoma Hinata, Kazuko Sakuma, Tsutomu Nishida, Jumpei Kuno, Hirofumi Kumoi, Masato Tanaka, Masataka Kawahara, Yuto Ito, Isao Kawata
  • Publication number: 20160252830
    Abstract: An electrophotographic photosensitive member has a support, a charge generation layer, and a charge transport layer in this order, the charge transport layer containing a charge transport material. The charge transport layer is a surface layer of the electrophotographic photosensitive member and contains a polycarbonate resin having a structural unit selected from group A and a structural unit selected from group B (groups A and B defined in the disclosure).
    Type: Application
    Filed: February 25, 2016
    Publication date: September 1, 2016
    Inventors: Yota Ito, Daisuke Miura, Shoma Hinata, Hiroyuki Tomono, Takashi Anezaki, Tatsuya Yamaai, Kazumichi Sugiyama, Masataka Kawahara, Hirotoshi Uesugi, Akihiro Maruyama, Hirofumi Kumoi, Masato Tanaka
  • Publication number: 20160252829
    Abstract: An electrophotographic photosensitive member has a support, a charge generation layer, and a charge transport layer in this order, the charge transport layer containing a charge transport material. The charge transport layer is a surface layer of the electrophotographic photosensitive member and contains a polycarbonate resin having a structural unit selected from group A and a structural unit selected from group B (groups A and B defined in the disclosure).
    Type: Application
    Filed: February 25, 2016
    Publication date: September 1, 2016
    Inventors: Masataka Kawahara, Hirotoshi Uesugi, Akihiro Maruyama, Hirofumi Kumoi, Masato Tanaka, Hiroyuki Tomono, Shoma Hinata, Yota Ito, Daisuke Miura, Takashi Anezaki, Tatsuya Yamaai, Kazumichi Sugiyama
  • Publication number: 20160154326
    Abstract: The charge generating layer includes a gallium phthalocyanine crystal in which an organic compound (P) is contained, the organic compound (P) is at least one compound selected from the group consisting of dimethylsulfoxide, N,N-dimethylformamide, N-methylformamide, N-propylformamide, N-vinylformamide and N-methylpyrrolidone, the content of the organic compound (P) is 0.1% by mass or more and 1.5% by mass or less based on a gallium phthalocyanine in the gallium phthalocyanine crystal, and the charge transporting layer includes a resin having a siloxane structure, and a compound (Q) having a boiling point of 150° C. or more at 1 atm.
    Type: Application
    Filed: October 29, 2015
    Publication date: June 2, 2016
    Inventors: Hirofumi Kumoi, Shoma Hinata, Masataka Kawahara, Masato Tanaka
  • Publication number: 20160154328
    Abstract: To provide an electrophotographic photosensitive member that can allow a high-quality image, in which photomemory after repeated use in a high-speed process is suppressed, to be output, as well as a process cartridge and an electrophotographic apparatus including the electrophotographic photosensitive member. An electrophotographic photosensitive member wherein a charge generating layer includes a gallium phthalocyanine crystal in which an organic compound is contained, wherein the organic compound is at least one compound selected from the group consisting of dimethylsulfoxide, N,N-dimethylformamide, N-methylformamide, N-propylformamide, N-vinylformamide and N-methylpyrrolidone, the content of the organic compound is 0.1% by mass or more and 2.0% by mass or less based on a gallium phthalocyanine in the gallium phthalocyanine crystal, and a charge transporting layer includes a polycarbonate resin having structural units represented by the following formula (1).
    Type: Application
    Filed: November 17, 2015
    Publication date: June 2, 2016
    Inventors: Hirofumi Kumoi, Shoma Hinata, Masataka Kawahara, Masato Tanaka