Patents by Inventor Takayuki Sumida

Takayuki Sumida 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).

  • Patent number: 12232341
    Abstract: An embodiment according to the present disclosure provides a photoelectric conversion element including a first electrode, a second electrode, and a photoelectric conversion layer disposed between the first electrode and the second electrode, wherein the photoelectric conversion layer includes a first region, a second region disposed between the first region and the second electrode, and a third region that is disposed between the second region and the second electrode and that is in contact with the second region, the inorganic ligand ratio in the second region is higher than the inorganic ligand ratio in the first region, the inorganic ligand ratio at the interface of the third region to the second region is lower than the inorganic ligand ratio in the first region, and the inorganic ligand ratio in the second region increases with increasing proximity to the third region.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: February 18, 2025
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takahiro Yajima, Takayuki Sumida
  • Patent number: 12063800
    Abstract: A photoelectric conversion element that reduces a residual image while enhancing heat resistance and includes a first electrode; a photoelectric conversion layer; a first interfacial layer; and a second electrode in this order, the photoelectric conversion layer has a quantum dot, the quantum dot is a PbS quantum dot, the first interfacial layer has an organic compound having a glass transition temperature of 100° ° C. or higher, and the following Equation (1) is met: ?hEBL?1.0×10?3 (cm2/Vs) . . . (1), where ?hEBL denotes hole mobility of the first interfacial layer.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: August 13, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomona Yamaguchi, Takayuki Sumida
  • Patent number: 11774447
    Abstract: This invention provides a method for diagnosis of rheumatoid arthritis of a subject, a method for assisting diagnosis of rheumatoid arthritis, and a method for monitoring disease activity of rheumatoid arthritis and/or therapeutic effects of an agent for rheumatoid arthritis, comprising detecting citrullination of an arginine residue of the inter-?-trypsin inhibitor heavy chain (ITIH) 4 in a biological sample obtained from the subject. This invention also provides a citrullinated protein derived from the protein having the amino acid sequence as shown in SEQ ID NO: 1 or 5 by modification of arginine 438 into citrulline or a fragment thereof, an antibody binding to such citrullinated protein, and an agent for diagnosis of rheumatoid arthritis comprising such antibody.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: October 3, 2023
    Assignee: University of Tsukuba
    Inventors: Isao Matsumoto, Takayuki Sumida, Hoshimi Kawaguchi
  • Patent number: 11769754
    Abstract: A manufacturing method for a semiconductor apparatus sequentially includes bonding a first chip and a second chip together using an adhesive. The first chip includes a first electrode and has a protrusion, and the second chip has a recess. In the bonding, the first chip and the second chip are bonded together in such a manner that the protrusion is positioned into the recess. Further, the method includes forming a through hole in the second chip to expose the first electrode, the first surface being opposite to a second surface having the recess, and forming the second electrode which is electrically connected to the first electrode, in the through hole.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: September 26, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsuya Saito, Takayuki Sumida
  • Patent number: 11631776
    Abstract: The present disclosure is a photoelectric conversion element including: a photoelectric conversion layer 5 including a first quantum dot 4a and a second quantum dot 4b, a ratio X of the number of heavy metal atoms to the number of oxygen group atoms is less than 2 on a surface of the nanoparticle of the first quantum dot 4a, the ratio X is greater than or equal to 2 on a surface of the nanoparticle of the second quantum dot 4b, and Equation (1) is satisfied: 0.3<N??(1), where N denotes a ratio of the number of second quantum dots to the number of first quantum dots.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: April 18, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Youichi Fukaya, Takayuki Sumida, Akira Shimazu
  • Patent number: 11569277
    Abstract: There is disclosed a semiconductor device including: a substrate; a plurality of first electrodes arranged away from each other with gaps on the substrate; a first intermediate layer arranged on each of the plurality of first electrode; a second intermediate layer, at least a part of which is arranged on each of the gaps of the plurality of first electrodes; a photoelectric conversion layer arranged on the first intermediate layer and the second intermediate layer; and a second electrode arranged on the photoelectric conversion layer. A content of oxygen on a molar basis in the second intermediate layer is higher than a content of oxygen on a molar basis in the first intermediate layer.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: January 31, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takayuki Sumida, Yoshinori Tateishi, Takahiro Yajima
  • Patent number: 11505456
    Abstract: A method includes a step of forming a sacrificial layer on a first film, a step of forming a second film on the sacrificial layer, a step of forming an etching opening that extends through at least one of the first film and the second film so as to communicate with the sacrificial layer, and a step of forming a hollow portion by etching the sacrificial layer using a gas containing a fluorine-containing gas and hydrogen via the etching opening, wherein a composition ratio of silicon to nitrogen in a first region having a face in contact with the sacrificial layer is larger than a composition ratio of silicon to nitrogen in a second region not including the first region.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: November 22, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Sumida, Ayako Maruyama, Takahiro Akiyama, Yutaka Setomoto
  • Patent number: 11476306
    Abstract: A semiconductor apparatus includes, a substrate having a main surface, an upper electrode disposed above the substrate, a first lower electrode and a second lower electrode disposed between the substrate and the upper electrode, an isolation region disposed between the first lower electrode and the second lower electrode, a functional layer configured to perform light emission or photoelectric conversion, and an interface layer disposed at least on the first lower electrode. The semiconductor apparatus further includes a first insulator portion that is disposed between the first lower electrode and the second lower electrode and includes a first portion disposed at a position farther away from the main surface than an upper surface of the interface layer.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: October 18, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takahiro Yajima, Takayuki Sumida, Akira Shimazu
  • Patent number: 11374189
    Abstract: A quantum dot includes an inorganic particle, and an organic ligand and an inorganic ligand on a surface of the inorganic particle, and the molar percentage of the inorganic ligand relative to the total amount of the inorganic ligand and the organic ligand is 25% or more and 99.8% or less.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: June 28, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takahiro Yajima, Youichi Fukaya, Akira Shimazu, Takayuki Sumida
  • Publication number: 20220085111
    Abstract: An embodiment according to the present disclosure provides a photoelectric conversion element including a first electrode, a second electrode, and a photoelectric conversion layer disposed between the first electrode and the second electrode, wherein the photoelectric conversion layer includes a first region, a second region disposed between the first region and the second electrode, and a third region that is disposed between the second region and the second electrode and that is in contact with the second region, the inorganic ligand ratio in the second region is higher than the inorganic ligand ratio in the first region, the inorganic ligand ratio at the interface of the third region to the second region is lower than the inorganic ligand ratio in the first region, and the inorganic ligand ratio in the second region increases with increasing proximity to the third region.
    Type: Application
    Filed: November 22, 2021
    Publication date: March 17, 2022
    Inventors: Takahiro Yajima, Takayuki Sumida
  • Publication number: 20210391505
    Abstract: Disclosed is a semiconductor device includes a substrate provided with a plurality of pixel electrodes and a control electrode, a functional layer provided over the plurality of pixel electrodes, a transparent electrode provided over the functional layer, an insulating layer provided so as to cover an upper surface and a side surface of a laminate including the functional layer and the transparent electrode and having a first opening reaching the transparent electrode, and a light-shielding conductive layer connected to the transparent electrode via the first opening and constituting at least a part of an electrical path connecting the transparent electrode and the control electrode.
    Type: Application
    Filed: June 9, 2021
    Publication date: December 16, 2021
    Inventors: Tatsuro Uchida, Takayuki Sumida
  • Publication number: 20210313531
    Abstract: A photoelectric conversion element that reduces a residual image while enhancing heat resistance and includes a first electrode; a photoelectric conversion layer; a first interfacial layer; and a second electrode in this order, the photoelectric conversion layer has a quantum dot, the quantum dot is a PbS quantum dot, the first interfacial layer has an organic compound having a glass transition temperature of 100° C. or higher, and the following Equation (1) is met: ?hEBL?1.0×10?3 (cm2/Vs) . . . (1), where ?hEBL denotes hole mobility of the first interfacial layer.
    Type: Application
    Filed: April 1, 2021
    Publication date: October 7, 2021
    Inventors: Tomona Yamaguchi, Takayuki Sumida
  • Publication number: 20210242416
    Abstract: A semiconductor device includes an anode, a cathode, a first functional layer between the anode and cathode, and a second functional layer between the first functional layer and the cathode. The first functional layer contains a first quantum dot having a first ligand, and the second functional layer contains a second quantum dot having a second ligand different from the first ligand. The second ligand is an aromatic compound having a sulfide bond and an ester bond.
    Type: Application
    Filed: January 28, 2021
    Publication date: August 5, 2021
    Inventors: Takayuki Sumida, Akira Shimazu, Takahiro Yajima, Tomona Yamaguchi
  • Publication number: 20210111291
    Abstract: The present disclosure is a photoelectric conversion element including: a photoelectric conversion layer 5 including a first quantum dot 4a and a second quantum dot 4b, a ratio X of the number of heavy metal atoms to the number of oxygen group atoms is less than 2 on a surface of the nanoparticle of the first quantum dot 4a, the ratio X is greater than or equal to 2 on a surface of the nanoparticle of the second quantum dot 4b, and Equation (1) is satisfied: 0.3<N??(1), where N denotes a ratio of the number of second quantum dots to the number of first quantum dots.
    Type: Application
    Filed: October 2, 2020
    Publication date: April 15, 2021
    Inventors: Youichi Fukaya, Takayuki Sumida, Akira Shimazu
  • Publication number: 20210074744
    Abstract: There is disclosed a semiconductor device including: a substrate; a plurality of first electrodes arranged away from each other with gaps on the substrate; a first intermediate layer arranged on each of the plurality of first electrode; a second intermediate layer, at least a part of which is arranged on each of the gaps of the plurality of first electrodes; a photoelectric conversion layer arranged on the first intermediate layer and the second intermediate layer; and a second electrode arranged on the photoelectric conversion layer. A content of oxygen on a molar basis in the second intermediate layer is higher than a content of oxygen on a molar basis in the first intermediate layer.
    Type: Application
    Filed: September 1, 2020
    Publication date: March 11, 2021
    Inventors: Takayuki Sumida, Yoshinori Tateishi, Takahiro Yajima
  • Publication number: 20200312913
    Abstract: A semiconductor apparatus includes, a substrate having a main surface, an upper electrode disposed above the substrate, a first lower electrode and a second lower electrode disposed between the substrate and the upper electrode, an isolation region disposed between the first lower electrode and the second lower electrode, a functional layer configured to perform light emission or photoelectric conversion, and an interface layer disposed at least on the first lower electrode. The semiconductor apparatus further includes a first insulator portion that is disposed between the first lower electrode and the second lower electrode and includes a first portion disposed at a position farther away from the main surface than an upper surface of the interface layer.
    Type: Application
    Filed: March 20, 2020
    Publication date: October 1, 2020
    Inventors: Takahiro Yajima, Takayuki Sumida, Akira Shimazu
  • Publication number: 20200295287
    Abstract: A quantum dot includes an inorganic particle, and an organic ligand and an inorganic ligand on a surface of the inorganic particle, and the molar percentage of the inorganic ligand relative to the total amount of the inorganic ligand and the organic ligand is 25% or more and 99.8% or less.
    Type: Application
    Filed: March 3, 2020
    Publication date: September 17, 2020
    Inventors: Takahiro Yajima, Youichi Fukaya, Akira Shimazu, Takayuki Sumida
  • Publication number: 20200173990
    Abstract: This invention provides a method for diagnosis of rheumatoid arthritis of a subject, a method for assisting diagnosis of rheumatoid arthritis, and a method for monitoring disease activity of rheumatoid arthritis and/or therapeutic effects of an agent for rheumatoid arthritis, comprising detecting citrullination of an arginine residue of the inter-?-trypsin inhibitor heavy chain (ITIH) 4 in a biological sample obtained from the subject. This invention also provides a citrullinated protein derived from the protein having the amino acid sequence as shown in SEQ ID NO: 1 or 5 by modification of arginine 438 into citrulline or a fragment thereof, an antibody binding to such citrullinated protein, and an agent for diagnosis of rheumatoid arthritis comprising such antibody.
    Type: Application
    Filed: July 2, 2018
    Publication date: June 4, 2020
    Applicant: University of Tsukuba
    Inventors: Isao Matsumoto, Takayuki Sumida, Hoshimi Kawaguchi
  • Publication number: 20200176421
    Abstract: A manufacturing method for a semiconductor apparatus sequentially includes bonding a first chip and a second chip together using an adhesive. The first chip includes a first electrode and has a protrusion, and the second chip has a recess. In the bonding, the first chip and the second chip are bonded together in such a manner that the protrusion is positioned into the recess. Further, the method includes forming a through hole in the second chip to expose the first electrode, the first surface being opposite to a second surface having the recess, and forming the second electrode which is electrically connected to the first electrode, in the through hole.
    Type: Application
    Filed: November 25, 2019
    Publication date: June 4, 2020
    Inventors: Tatsuya Saito, Takayuki Sumida
  • Publication number: 20200123005
    Abstract: A method includes a step of forming a sacrificial layer on a first film, a step of forming a second film on the sacrificial layer, a step of forming an etching opening that extends through at least one of the first film and the second film so as to communicate with the sacrificial layer, and a step of forming a hollow portion by etching the sacrificial layer using a gas containing a fluorine-containing gas and hydrogen via the etching opening, wherein a composition ratio of silicon to nitrogen in a first region having a face in contact with the sacrificial layer is larger than a composition ratio of silicon to nitrogen in a second region not including the first region.
    Type: Application
    Filed: December 20, 2019
    Publication date: April 23, 2020
    Inventors: Takayuki Sumida, Ayako Maruyama, Takahiro Akiyama, Yutaka Setomoto