Patents by Inventor Kenji Todori

Kenji Todori 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: 20220285103
    Abstract: According to one embodiment, a photoelectric conversion element includes a first conductive layer, a second conductive layer, an a photoelectric conversion layer located between the first conductive layer and the second conductive layer. The photoelectric conversion layer includes Sn and Pb. The photoelectric conversion layer includes a first partial region, a second partial region between the first partial region and the second conductive layer, and a third partial region between the second partial region and the second conductive layer. The first partial region includes a first Sn concentration and a first Pb concentration. The second partial region includes at least one of a second Sn concentration or a second Pb concentration. The second Sn concentration is less than the first Sn concentration. The second Pb concentration is greater than the first Pb concentration. The third partial region includes Sn, oxygen, and Pb.
    Type: Application
    Filed: August 17, 2021
    Publication date: September 8, 2022
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shunsuke SHIMO, Kenji TODORI
  • 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: 20220149299
    Abstract: According to one embodiment, a photoelectric conversion element includes a first conductive layer, a second conductive layer, and a photoelectric conversion layer located between the first conductive layer and the second conductive layer. The photoelectric conversion layer includes a perovskite compound and a first compound. The first compound includes at least one selected from the group consisting of a pyrrolidone derivative, a urea derivative, an imidazole derivative, a pyridine derivative, and a diamine derivative.
    Type: Application
    Filed: August 17, 2021
    Publication date: May 12, 2022
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shunsuke SHIMO, Shigehiko MORI, Kenji TODORI, Koji MIZUGUCHI
  • 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
  • Patent number: 10714270
    Abstract: The present embodiments provide a flexible, lightweight and highly efficient photoelectric conversion device and further provide a manufacturing method thereof. The photoelectric conversion device according to the embodiment comprises a laminate structure of a substrate, an ITO electrode, a photoelectric conversion layer and a counter electrode. When subjected to surface X-ray diffraction analysis, the ITO electrode shows an X-ray diffraction profile characterized in that the peak at a diffraction peak position in the range of 2?=30.6±0.5° has a half-width of 1.0° or less. The ITO electrode in the device can be formed by forming an amorphous-phase ITO film on the substrate and then by subjecting the film to annealing treatment at a temperature of 200° or less.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: July 14, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shigehiko Mori, Takeshi Gotanda, Haruhi Oooka, Kenji Todori
  • Publication number: 20200212330
    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: March 6, 2020
    Publication date: July 2, 2020
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Akio AMANO, Hideyuki NAKAO, Kenji TODORI, Kenji FUJINAKA
  • 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: 10468616
    Abstract: A method of manufacturing a photoelectric conversion device of an embodiment includes: forming a layer on a substrate; and drying this layer. The layer contains a p-type semiconductor, an n-type semiconductor, and a compound represented by the following formula (1). The layer is dried under pressures of 100 Pa or less and substrate temperatures of 40 to 200° C.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: November 5, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Haruhi Oooka, Atsuko Iida, Hideyuki Nakao, Kenji Todori, Takeshi Gotanda
  • Patent number: 10446757
    Abstract: An solar cell of an embodiment includes a first electrode, an electron transport layer containing a metal oxide, a self-assembled monolayer, a photoelectric conversion layer including a p-type semiconductor and an n-type semiconductor, and a second electrode. The self-assembled monolayer includes a fullerene-containing compound having a fullerene portion including a fullerene or a fullerene derivative, an absorption group to the metal oxide, and a bond group bonding the fullerene portion and the absorption group. The bond group contains a bivalent aromatic hydrocarbon group and a bivalent organic group which includes a carbon atom chain having 1 to 18 single-bonded carbon(s) or an atom chain in which a part of the carbon atom chain is substituted by at least one element selected from oxygen, nitrogen, and sulfur, as a main chain.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: October 15, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hyangmi Jung, Takeshi Gotanda, Kenji Todori
  • Patent number: 10403838
    Abstract: A photoelectric conversion device includes: an element substrate having a first electrode, a photoelectric conversion layer, and a second electrode, the photoelectric conversion layer being provided above the first electrode and performing charge separation by energy of irradiated light, and the second electrode being provided above the photoelectric conversion layer; a counter substrate facing the element substrate; and a sealing layer provided between the element substrate and the counter substrate. The element substrate, the counter substrate, and the sealing layer define a sealing region sealing the photoelectric conversion layer. The element substrate further has: an impurity detection layer in contact with the second electrode inside the sealing region and causing chemical reaction with an impurity containing at least one of oxygen and water; and a third electrode in contact with the impurity detection layer and extending to the outside of the sealing region.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: September 3, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hyangmi Jung, Atsuko Iida, Takeshi Gotanda, Hideyuki Nakao, Shigehiko Mori, Kenji Todori
  • Publication number: 20190189943
    Abstract: According to one embodiment, a photoelectric conversion element includes a photoelectric conversion layer, a first electrode, and a first layer. The photoelectric conversion layer includes a material having a perovskite structure. The first electrode includes polyethylene dioxythiophene. The first layer is provided between the photoelectric conversion layer and the first electrode. The first layer has hole transport properties. The hygroscopicity of the first layer is lower than a hygroscopicity of the photoelectric conversion layer.
    Type: Application
    Filed: February 22, 2019
    Publication date: June 20, 2019
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takeshi GOTANDA, Kenji TODORI
  • 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
  • Patent number: 10236322
    Abstract: A solar cell module according to an embodiment includes: a light transmissive first substrate; a second substrate; at least one cell array disposed between the first substrate and the second substrate, the cell array including a plurality of cells arranged, each of the cells including a first electrode disposed on the first substrate, an organic photoelectric conversion film disposed on the first electrode, and a second electrode disposed on the organic photoelectric conversion film; a plurality of light transmissive partition walls disposed at portions on the first substrate, the portions being located between adjacent ones of the cells and at both end portions of the cell array; and a first resin film disposed between the second substrate and each of the cells between adjacent ones of the partition walls, the cells being connected in series.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: March 19, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Atsuko Iida, Takeshi Gotanda, Hideyuki Nakao, Haruhi Oooka, Rumiko Hayase, Shigehiko Mori, Kenji Todori