Patents by Inventor Kenji Fujinaga

Kenji Fujinaga 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: 11502210
    Abstract: A photoelectric conversion element includes: a first photoelectric conversion layer including: a bottom electrode; a photoelectric conversion layer; and a top electrode; and a second photoelectric conversion part including: a bottom electrode; a photoelectric conversion part; and a top electrode. A conductive layer is formed on the bottom electrode. The top electrode and the bottom electrode are electrically connected by a conductive portion and the conductive layer. The conductive portion is formed of a part of the top electrode filled in a first groove that makes a surface of the conductive layer exposed and separates a photoelectric conversion layer and a photoelectric conversion layer from each other. The top electrodes are physically separated by a second groove provided to make a step surface of a stepped portion provided in the photoelectric conversion layer exposed and have a bottom surface thereof overlap the surface of the conductive layer.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: November 15, 2022
    Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Energy Systems & Solutions Corporation
    Inventors: Haruhi Oooka, Kenji Todori, Kenji Fujinaga
  • Patent number: 11489081
    Abstract: A photoelectric conversion device includes: a substrate; a first photoelectric conversion element including a first substrate electrode, a first photoelectric conversion layer, and a first counter electrode; a second photoelectric conversion element including a second substrate electrode, a second photoelectric conversion layer, and a second counter electrode; and a connection including a groove, a conductive portion and a conductive layer, the conductive portion being provided in the groove and including a part of the first counter electrode, and the conductive portion and the conductive layer electrically connecting the first counter electrode and the second substrate electrode. The conductive layer overlaps the first counter electrode on an edge of the groove, and a total thickness of the conductive portion and the conductive layer is larger than a thickness of the first counter electrode.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: November 1, 2022
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Akio Amano, Kenji Todori, Kenji Fujinaga
  • Publication number: 20220246874
    Abstract: A photoelectric conversion device in an embodiment includes a first photoelectric conversion part including a first transparent electrode, a first photoelectric conversion layer, and a first counter electrode and a second photoelectric conversion part including a second transparent electrode, a second photoelectric conversion layer, and a second counter electrode, the first photoelectric conversion part and the second photoelectric conversion part being provided on a transparent substrate. The first counter electrode and the second transparent electrode are electrically connected by a connection part. As for the first photoelectric conversion layer and the second photoelectric conversion layer, adjacent portions of the adjacent first and second photoelectric conversion layers are electrically separated by an inactive region having electrical resistance higher than that of the first and second photoelectric conversion layers.
    Type: Application
    Filed: April 13, 2022
    Publication date: August 4, 2022
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Akio AMANO, Hideyuki NAKAO, Kenji TODORI, Kenji FUJINAGA
  • Patent number: 11335871
    Abstract: A photoelectric conversion device in an embodiment includes a first photoelectric conversion part including a first transparent electrode, a first photoelectric conversion layer, and a first counter electrode and a second photoelectric conversion part including a second transparent electrode, a second photoelectric conversion layer, and a second counter electrode, the first photoelectric conversion part and the second photoelectric conversion part being provided on a transparent substrate. The first counter electrode and the second transparent electrode are electrically connected by a connection part. As for the first photoelectric conversion layer and the second photoelectric conversion layer, adjacent portions of the adjacent first and second photoelectric conversion layers are electrically separated by an inactive region having electrical resistance higher than that of the first and second photoelectric conversion layers.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: May 17, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Akio Amano, Hideyuki Nakao, Kenji Todori, Kenji Fujinaga
  • Publication number: 20220140780
    Abstract: A flight vehicle of an embodiment includes a wing, double-side generation type solar cells, and a light reflecting part. The wing has an outer shell member. The outer shell member has transmittance. The wing is formed by an outer shell member in a hollow shape. The solar cells are disposed on the upper surface of the wing. The light reflecting part is provided on an inner surface of the outer shell member.
    Type: Application
    Filed: January 19, 2022
    Publication date: May 5, 2022
    Inventors: Haiyan Jin, Takeshi Gotanda, Yutaka Saita, Tomohiro Tobari, Katsuya Yamashita, Miyuki Shiokawa, Kenji Fujinaga
  • Publication number: 20220005871
    Abstract: A device includes: a substrate; a first cell region including a first lower electrode, a first photoelectric conversion layer containing a perovskite compound, and a first upper electrode; a second cell region including a second lower electrode, a second photoelectric conversion layer containing a perovskite compound, and a second upper electrode; and an inter-cell region including a first groove which separates the lower electrodes from each other, a second groove which separates the photoelectric conversion layers from each other, a conductive part which electrically connects the first upper electrode and the second lower electrode, and a third groove which separates the upper electrodes from each other. At least either the substrate including the first and second lower electrodes, or the first and second upper electrodes are formed of a light transmissive material. A member is disposed on the light transmissive material side.
    Type: Application
    Filed: September 10, 2021
    Publication date: January 6, 2022
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Shigehiko MORI, Hideyuki NAKAO, Akio AMANO, Kenji TODORI, Kenji FUJINAGA
  • Patent number: 10950391
    Abstract: A method for manufacturing a photoelectric conversion device, that includes: forming a laminate structure of a substrate, a transparent electrode, an active layer produced by wet-coating, and a counter electrode, stacked in this order; and thereafter forming a cavity by: (a) pressing an adhesive material just against a defect formed on the surface of said counter electrode, and then peeling off said adhesive material together with said defect and the peripheral part thereof; or (b) sucking a defect formed on the surface of said counter electrode, so as to remove said defect and the peripheral part thereof, where said cavity penetrates through the counter electrode and unreached to the transparent electrode.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: March 16, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shigehiko Mori, Hideyuki Nakao, Takeshi Gotanda, Haruhi Oooka, Kenji Todori, Kenji Fujinaga
  • Publication number: 20200411704
    Abstract: A photoelectric conversion element includes: a first photoelectric conversion layer including: a bottom electrode; a photoelectric conversion layer; and a top electrode; and a second photoelectric conversion part including: a bottom electrode; a photoelectric conversion part; and a top electrode. A conductive layer is formed on the bottom electrode. The top electrode and the bottom electrode are electrically connected by a conductive portion and the conductive layer. The conductive portion is formed of a part of the top electrode filled in a first groove that makes a surface of the conductive layer exposed and separates a photoelectric conversion layer and a photoelectric conversion layer from each other. The top electrodes are physically separated by a second groove provided to make a step surface of a stepped portion provided in the photoelectric conversion layer exposed and have a bottom surface thereof overlap the surface of the conductive layer.
    Type: Application
    Filed: September 10, 2020
    Publication date: December 31, 2020
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Haruhi OOOKA, Kenji TODORI, Kenji FUJINAGA
  • Publication number: 20200403108
    Abstract: A photoelectric conversion device includes: a substrate; a first photoelectric conversion element including a first substrate electrode, a first photoelectric conversion layer, and a first counter electrode; a second photoelectric conversion element including a second substrate electrode, a second photoelectric conversion layer, and a second counter electrode; and a connection including a groove, a conductive portion and a conductive layer, the conductive portion being provided in the groove and including a part of the first counter electrode, and the conductive portion and the conductive layer electrically connecting the first counter electrode and the second substrate electrode. The conductive layer overlaps the first counter electrode on an edge of the groove, and a total thickness of the conductive portion and the conductive layer is larger than a thickness of the first counter electrode.
    Type: Application
    Filed: September 4, 2020
    Publication date: December 24, 2020
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Akio AMANO, Kenji TODORI, Kenji FUJINAGA
  • Publication number: 20200402725
    Abstract: A photoelectric conversion device includes: a substrate; a first photoelectric conversion element including a first substrate electrode, a first active layer and a first counter electrode; a second photoelectric conversion element including a second substrate electrode, a second active layer, and a second counter electrode; and a connection connecting the first counter electrode and the second substrate electrode. The second active layer is represented by a composition formula: A?BX?, where A denotes at least one cation selected from monovalent cations, B denotes at least one cation selected from bivalent cations, and X denotes at least one ion selected from monovalent halogen ions; and the second active layer has a first and a second compound layer, the first compound layer containing a first compound satisfying 0.95??, and 2.95??, and the second compound layer containing a second compound satisfying ?<0.95, and ?<2.95.
    Type: Application
    Filed: September 4, 2020
    Publication date: December 24, 2020
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Haruhi OOOKA, Hideyuki NAKAO, Kenji FUJINAGA
  • Publication number: 20200203084
    Abstract: A photoelectric conversion element comprises: a photoelectric conversion layer; a first compound layer including a first supporting member and a first compound, the first compound being supported by the first supporting member, being not in contact with the photoelectric conversion layer, and being liquid or gelatinous in an environment to use the element; and a second compound layer including a second supporting member and a second compound, the second compound being supported by the second supporting member, being not in contact with the photoelectric conversion layer and the first compound, and being liquid or gelatinous in the environment.
    Type: Application
    Filed: March 6, 2020
    Publication date: June 25, 2020
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Haruhi OOOKA, Kenji Todori, Kenji Fujinaga
  • Publication number: 20200043672
    Abstract: A method for manufacturing a photoelectric conversion device, that includes: forming a laminate structure of a substrate, a transparent electrode, an active layer produced by wet-coating, and a counter electrode, stacked in this order; and thereafter forming a cavity by: (a) pressing an adhesive material just against a defect formed on the surface of said counter electrode, and then peeling off said adhesive material together with said defect and the peripheral part thereof; or (b) sucking a defect formed on the surface of said counter electrode, so as to remove said defect and the peripheral part thereof, where said cavity penetrates through the counter electrode and unreached to the transparent electrode.
    Type: Application
    Filed: October 11, 2019
    Publication date: February 6, 2020
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shigehiko MORI, Hideyuki NAKAO, Takeshi GOTANDA, Haruhi OOOKA, Kenji TODORI, Kenji FUJINAGA
  • Patent number: 10480829
    Abstract: A solar panel support unit of an embodiment includes a first support member, a second support member, and a third support member. The first support member includes a first support section and a first attachment section. The first attachment section is disposed at a position spaced by a first distance from the first support section. The second support member includes a second support section and a second attachment section. The second attachment section is disposed at a position spaced by a second distance from the second support section in the panel thickness direction, the second distance being smaller than the first distance, the second attachment section having a second hole to be in communication with the first hole, the second attachment section being to overlap the first attachment section. The third support member includes a third support section and a third attachment section.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: November 19, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takumi Matsuda, Kenji Fujinaga, Yasuhiro Seki
  • Publication number: 20190088417
    Abstract: The present embodiments provide a photoelectric conversion device having a laminate structure of a substrate, a transparent electrode, an active layer, and a counter electrode, stacked in this order. In the device, a cavity is provided on the counter electrode-side. The cavity penetrates through the counter electrode and has an opening area larger in the counter electrode than in the active layer.
    Type: Application
    Filed: March 13, 2018
    Publication date: March 21, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shigehiko MORI, Hideyuki NAKAO, Takeshi GOTANDA, Haruhi OOOKA, Kenji TODORI, Kenji FUJINAGA
  • Publication number: 20170370619
    Abstract: A solar panel support unit of an embodiment includes a first support member, a second support member, and a third support member. The first support member includes a first support section and a first attachment section. The first attachment section is disposed at a position spaced by a first distance from the first support section. The second support member includes a second support section and a second attachment section. The second attachment section is disposed at a position spaced by a second distance from the second support section in the panel thickness direction, the second distance being smaller than the first distance, the second attachment section having a second hole to be in communication with the first hole, the second attachment section being to overlap the first attachment section. The third support member includes a third support section and a third attachment section.
    Type: Application
    Filed: December 1, 2016
    Publication date: December 28, 2017
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takumi MATSUDA, Kenji FUJINAGA, Yasuhiro SEKI
  • Patent number: 7014263
    Abstract: A vehicle seat may include a seat cushion movably supported on a vehicle floor bracket, a seat back rotatably supported forwardly and rearwardly on the vehicle floor bracket via a seat reclining mechanism, a connecting mechanism interconnecting the seat cushion and seat back, and a supporting mechanism supporting the seat cushion on a vehicle floor. The connecting mechanism is fixedly connected to the seat cushion and is rotatably connected to the seat back. The connecting mechanism is arranged and constructed such that when the seat back is rotated forwardly, the seat cushion can be moved forwardly and downwardly and that when the seat back is rotated rearwardly from its normal position, the seat cushion can be maintained in place and not be moved.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: March 21, 2006
    Assignee: Araco Kabushiki Kaisha
    Inventors: Takashi Mukoujima, Kenji Fujinaga, Shigeru Fukuda, Yasunori Hasegawa, Jun Kanamori, Hideki Shimizu, Hiromu Mizuno
  • Publication number: 20040160104
    Abstract: A vehicle seat may include a seat cushion movably supported on a vehicle floor bracket, a seat back rotatably supported forwardly and rearwardly on the vehicle floor bracket via a seat reclining mechanism, a connecting mechanism interconnecting the seat cushion and seat back, and a supporting mechanism supporting the seat cushion on a vehicle floor. The connecting mechanism is fixedly connected to the seat cushion and is rotatably connected to the seat back. The connecting mechanism is arranged and constructed such that when the seat back is rotated forwardly, the seat cushion can be moved forwardly and downwardly and that when the seat back is rotated rearwardly from its normal position, the seat cushion can be maintained in place and not be moved.
    Type: Application
    Filed: November 25, 2003
    Publication date: August 19, 2004
    Inventors: Takashi Mukoujima, Kenji Fujinaga, Shigeru Fukuda, Yasunori Hasegawa, Jun Kanamori, Hideki Shimizu, Hiromu Mizuno