Patents by Inventor Toshiki Moriwaki

Toshiki Moriwaki 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: 20220045292
    Abstract: The present technology relates to a photoelectric conversion element, a measuring method of the same, a solid-state imaging device, an electronic device, and a solar cell capable of further improving a quantum efficiency in a photoelectric conversion element using a photoelectric conversion layer including an organic semiconductor material. The photoelectric conversion element includes two electrodes forming a positive electrode (11) and a negative electrode (14), at least one charge blocking layer (13, 15) arranged between the two electrodes, and a photoelectric conversion layer (12) arranged between the two electrodes. The at least one charge blocking layer is an electron blocking layer (13) or a hole blocking layer (15), and a potential of the charge blocking layer is bent. The present technology is applied to, for example, a solid-state imaging device, a solar cell, and the like having a photoelectric conversion element.
    Type: Application
    Filed: August 23, 2021
    Publication date: February 10, 2022
    Inventors: YUKIO KANEDA, RYOJI ARAI, TOSHIKI MORIWAKI
  • Publication number: 20220037602
    Abstract: An image pickup element 10 includes a first electrode 21, a charge accumulation electrode 24 that is arranged apart from the first electrode 21, a photoelectric conversion unit 23 that contacts the first electrode 21 and is formed above the charge accumulation electrode 24 via an insulation layer 82, and a second electrode 22 formed on the photoelectric conversion unit 23. The photoelectric conversion unit 23 includes, from the second-electrode side, a photoelectric conversion layer 23A, and an inorganic oxide semiconductor material layer 23B including InaGabSncOd, and 0.30?b/(a+b+c)?0.50 and b?c are satisfied.
    Type: Application
    Filed: September 6, 2019
    Publication date: February 3, 2022
    Inventors: YOICHIRO IINO, HIROSHI NAKANO, TOSHIKI MORIWAKI
  • Publication number: 20210399247
    Abstract: An electronic device is provided and includes a first electrode, a second electrode and a photoelectric conversion layer sandwiched between the first electrode and the second electrode, the first electrode including an amorphous oxide including a quaternary compound including one or more of indium, gallium and aluminum and further including zinc and oxygen, the first electrode having a laminated structure including a first B layer and a first A layer from a photoelectric conversion layer side, and a work function value of the first A layer of the first electrode being lower than a work function of the first B layer of the first electrode.
    Type: Application
    Filed: September 7, 2021
    Publication date: December 23, 2021
    Inventors: Toshiki MORIWAKI, Toru UDAKA
  • Publication number: 20210327961
    Abstract: An imaging element 10 includes a first electrode 21, a charge accumulation electrode 24 disposed apart from the first electrode 21, a photoelectric conversion unit 23 formed in contact with the first electrode 21 and above the charge accumulation electrode 24 with an insulation layer 82 interposed between the photoelectric conversion unit 23 and the charge accumulation electrode 24, and a second electrode 22 formed on the photoelectric conversion unit 23. The photoelectric conversion unit 23 includes a photoelectric conversion layer 23A and an inorganic oxide semiconductor material layer 23B disposed in an order of the photoelectric conversion layer 23A and the inorganic oxide semiconductor material layer 23B from the second electrode side. The inorganic oxide semiconductor material layer 23B contains indium (In) atoms, tin (Sn) atoms, titanium (Ti) atoms, and zinc (Zn) atoms.
    Type: Application
    Filed: August 30, 2019
    Publication date: October 21, 2021
    Inventor: TOSHIKI MORIWAKI
  • Patent number: 11145835
    Abstract: An imaging device is provided. The imaging device includes a semiconductor substrate; a first electrode disposed above the semiconductor substrate; a second electrode disposed above the first electrode; and a photoelectric conversion layer disposed between the first electrode and the second electrode, wherein a difference between a work function value of the first electrode and a work function value of the second electrode is 0.4 eV or more, and wherein the first electrode has a sheet resistance value of 3×10 ?/? to 1×103?/?.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: October 12, 2021
    Assignee: Sony Corporation
    Inventors: Toshiki Moriwaki, Toru Udaka
  • Patent number: 11127909
    Abstract: The present technology relates to a photoelectric conversion element, a measuring method of the same, a solid-state imaging device, an electronic device, and a solar cell capable of further improving a quantum efficiency in a photoelectric conversion element using a photoelectric conversion layer including an organic semiconductor material. The photoelectric conversion element includes two electrodes forming a positive electrode (11) and a negative electrode (14), at least one charge blocking layer (13, 15) arranged between the two electrodes, and a photoelectric conversion layer (12) arranged between the two electrodes. The at least one charge blocking layer is an electron blocking layer (13) or a hole blocking layer (15), and a potential of the charge blocking layer is bent. The present technology is applied to, for example, a solid-state imaging device, a solar cell, and the like having a photoelectric conversion element.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: September 21, 2021
    Assignee: SONY CORPORATION
    Inventors: Yukio Kaneda, Ryoji Arai, Toshiki Moriwaki
  • Publication number: 20210288099
    Abstract: An imaging element includes a photoelectric conversion unit formed by laminating a first electrode, a photoelectric conversion layer, and a second electrode. An inorganic oxide semiconductor material layer is formed between the first electrode and the photoelectric conversion layer. The inorganic oxide semiconductor material layer contains a gallium (Ga) atom and a tin (Sn) atom, or a gallium (Ga) atom and an indium (In) atom.
    Type: Application
    Filed: April 16, 2019
    Publication date: September 16, 2021
    Applicant: SONY CORPORATION
    Inventors: Toshiki MORIWAKI, Hiroshi NAKANO
  • Publication number: 20210265428
    Abstract: An imaging element according to an embodiment of the present disclosure includes: a first electrode including a plurality of electrodes; a second electrode opposed to the first electrode; a photoelectric conversion layer including an organic material provided between the first electrode and the second electrode; a first semiconductor layer provided between the first electrode and the photoelectric conversion layer, and including an n-type semiconductor material; and a second semiconductor layer provided between the second electrode and the photoelectric conversion layer, and including at least one of a carbon-containing compound having an electron affinity larger than a work function of the first electrode or an inorganic compound having a work function larger than the work function of the first electrode.
    Type: Application
    Filed: July 30, 2019
    Publication date: August 26, 2021
    Applicants: SONY CORPORATION, SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Yosuke SAITO, Masashi BANDO, Yukio KANEDA, Yoshiyuki HIRANO, Toshiki MORIWAKI
  • Publication number: 20210257401
    Abstract: An imaging device includes a photoelectric conversion unit in which a first electrode, a photoelectric conversion layer, and a second electrode are stacked. In the imaging device, an inorganic oxide semiconductor material layer is formed between the first electrode and the photoelectric conversion layer, and the inorganic oxide semiconductor material layer contains indium (In) atoms, gallium (Ga) atoms, and tin (Sn) atoms.
    Type: Application
    Filed: April 16, 2019
    Publication date: August 19, 2021
    Applicant: SONY CORPORATION
    Inventors: Toshiki MORIWAKI, Hiroshi NAKANO
  • Patent number: 11075349
    Abstract: To provide an organic photoelectric conversion element, imaging device, and optical sensor having low dark currents, and a method of manufacturing a photoelectric conversion element. Provided is a photoelectric conversion element, including: a first electrode; an organic photoelectric conversion layer disposed in a layer upper than the first electrode, the organic photoelectric conversion layer including one or two or more organic semiconductor materials; a buffer layer disposed in a layer upper than the organic photoelectric conversion layer, the buffer layer including an amorphous inorganic material and having an energy level of 7.7 to 8.0 eV and a difference in a HOMO energy level from the organic photoelectric conversion layer of 2 eV or more; and a second electrode disposed in a layer upper than the buffer layer.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: July 27, 2021
    Assignee: SONY CORPORATION
    Inventor: Toshiki Moriwaki
  • Publication number: 20210167234
    Abstract: An imaging device includes a photoelectric conversion unit in which a first electrode, a photoelectric conversion layer, and a second electrode are stacked. A semiconductor material layer including an inorganic oxide semiconductor material having an amorphous structure at least in a portion is formed between the first electrode and the photoelectric conversion layer, and the formation energy of an inorganic oxide semiconductor material that has the same composition as the inorganic oxide semiconductor material having an amorphous structure and has a crystalline structure has a positive value.
    Type: Application
    Filed: April 10, 2019
    Publication date: June 3, 2021
    Applicant: SONY CORPORATION
    Inventors: Hiroshi NAKANO, Toshiki MORIWAKI
  • Publication number: 20210151614
    Abstract: An imaging element includes a first electrode, a second electrode, and a light receiving layer between the first electrode and the second electrode to receive incident light from the second electrode. The second electrode includes an indium-tin oxide layer which includes at least one of silicon or silicon oxide.
    Type: Application
    Filed: December 29, 2020
    Publication date: May 20, 2021
    Applicant: SONY CORPORATION
    Inventor: Toshiki MORIWAKI
  • Publication number: 20210126040
    Abstract: An imaging device includes a photoelectric conversion unit in which a first electrode, a photoelectric conversion layer, and a second electrode are stacked. In the imaging device, an inorganic oxide semiconductor material layer is formed between the first electrode and the photoelectric conversion layer. The inorganic oxide semiconductor material layer contains zinc (Zn) atoms and tin (Sn) atoms, and, when expressed by ZnaSnbOc, satisfies the following conditions: a+b+c=1.00, and b>a.
    Type: Application
    Filed: April 17, 2019
    Publication date: April 29, 2021
    Applicant: SONY CORPORATION
    Inventor: Toshiki MORIWAKI
  • Patent number: 10937913
    Abstract: An imaging element includes a first electrode, a second electrode, and a light receiving layer between the first electrode and the second electrode to receive incident light from the second electrode. The second electrode includes an indium-tin oxide layer which includes at least one of silicon or silicon oxide.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: March 2, 2021
    Assignee: Sony Corporation
    Inventor: Toshiki Moriwaki
  • Publication number: 20210057168
    Abstract: A photoelectric conversion element according to an embodiment of the present disclosure includes: a first electrode including a plurality of electrodes independent from each other; a second electrode disposed to be opposed to the first electrode; a photoelectric conversion layer including a quantum dot; and a semiconductor layer including an oxide semiconductor material. The photoelectric conversion layer is provided between the first electrode and the second electrode. The semiconductor layer is provided between the first electrode and the photoelectric conversion layer. A conduction band of the photoelectric conversion layer has an energy level equal to or higher than an energy level of a conduction band of the semiconductor layer.
    Type: Application
    Filed: January 18, 2019
    Publication date: February 25, 2021
    Inventors: MICHINORI SHIOMI, TOSHIKI MORIWAKI
  • Patent number: 10840466
    Abstract: Disclosed herein is an electronic device including a first electrode, a second electrode, and a photoelectric conversion layer held between the first electrode and the second electrode. The first electrode is formed from a transparent conductive material having a work function ranging from 5.2 to 5.9 eV, preferably from 5.5 to 5.9 eV, more preferably 5.8 to 5.9 eV.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: November 17, 2020
    Assignee: SONY CORPORATION
    Inventor: Toshiki Moriwaki
  • Publication number: 20200303446
    Abstract: An imaging element includes a photoelectric conversion section that includes a first electrode, a photoelectric conversion layer, and a second electrode stacked on one another. An inorganic oxide semiconductor material layer is formed between the first electrode and the photoelectric conversion layer. The inorganic oxide semiconductor material layer includes indium (In) atoms, gallium (Ga) atoms, tin (Sn) atoms, and zinc (Zn) atoms.
    Type: Application
    Filed: October 31, 2018
    Publication date: September 24, 2020
    Applicant: SONY CORPORATION
    Inventor: Toshiki MORIWAKI
  • Publication number: 20200295219
    Abstract: An imaging element includes a photoelectric conversion unit formed by laminating a first electrode 21, a photoelectric conversion layer 23A, and a second electrode 22. Between the first electrode 21 and the photoelectric conversion layer 23A, an inorganic oxide semiconductor material layer 23B is formed in contact with the photoelectric conversion layer 23A. The photoelectric conversion unit further includes an insulating layer 82 and a charge accumulation electrode 24 disposed apart from the first electrode 21 so as to face the inorganic oxide semiconductor material layer 23B via the insulating layer 21. A material constituting the inorganic oxide semiconductor material layer 23B has a value of work function of 4.5 eV or less. A value obtained by subtracting the value of work function of the material constituting the inorganic oxide semiconductor material layer 23B from a value of work function of a material constituting the second electrode 22 exceeds 0.2 eV.
    Type: Application
    Filed: June 12, 2018
    Publication date: September 17, 2020
    Inventors: Toshiki MORIWAKI, Yuusuke YAMAZAKI, Yukio KANEDA
  • Publication number: 20200295285
    Abstract: The present technology relates to a photoelectric conversion element, a measuring method of the same, a solid-state imaging device, an electronic device, and a solar cell capable of further improving a quantum efficiency in a photoelectric conversion element using a photoelectric conversion layer including an organic semiconductor material. The photoelectric conversion element includes two electrodes forming a positive electrode (11) and a negative electrode (14), at least one charge blocking layer (13, 15) arranged between the two electrodes, and a photoelectric conversion layer (12) arranged between the two electrodes. The at least one charge blocking layer is an electron blocking layer (13) or a hole blocking layer (15), and a potential of the charge blocking layer is bent. The present technology is applied to, for example, a solid-state imaging device, a solar cell, and the like having a photoelectric conversion element.
    Type: Application
    Filed: March 10, 2017
    Publication date: September 17, 2020
    Inventors: YUKIO KANEDA, RYOJI ARAI, TOSHIKI MORIWAKI
  • Publication number: 20200266309
    Abstract: There is provided imaging devices and methods of forming the same, including a stacked structure body including a first electrode, a light-receiving layer formed on the first electrode, and a second electrode formed on the light-receiving layer, where the second electrode comprises an amorphous oxide comprising at least one of zinc and tungsten, and where the second electrode is transparent and electrically conductive and has absorption characteristics of 20% or more at a wavelength of 300 nm.
    Type: Application
    Filed: November 30, 2016
    Publication date: August 20, 2020
    Applicant: SONY CORPORATION
    Inventor: Toshiki MORIWAKI