Patents by Inventor Takeru BESSHO

Takeru BESSHO 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).

  • ORGANIC-INORGANIC HYBRID MATERIAL AND PEROVSKITE SOLAR CELL USING SAME
    Publication number: 20200294727
    Abstract: To provide a perovskite solar cell having a high conversion efficiency. An organic-inorganic hybrid material applicable to a perovskite solar cell having a first electrode, an electron transport compound layer arranged on the first electrode, a perovskite compound layer arranged on the electron transport compound layer, a hole transport layer arranged on the perovskite compound layer, and a second electrode arranged on the hole transport layer, the organic-inorganic hybrid material comprising a compound represented by “KxA1yA2zPbX1pX2q”. Wherein, K represents potassium, Pb represents lead, A1 and A2 represent freely selectable cations, which may be organic or inorganic, and may be same; X1 and X2 represent halogen atoms, which may be same; x represents a numerical value ranging from 0.01 to 0.20; and y, z, p and q represent freely selectable numerical values which satisfy x+y+z=1 and p+q=3.
    Type: Application
    Filed: May 10, 2018
    Publication date: September 17, 2020
    Applicant: THE UNIVERSITY OF TOKYO
    Inventors: Hiroshi SEGAWA, Takeru BESSHO, Zeguo TANG
  • Photoelectric conversion device and imaging device
    Patent number: 10720471
    Abstract: A photoelectric conversion device of an embodiment of the technology includes: a first electrode and a second electrode facing each other; a photoelectric conversion layer provided between the first electrode and the second electrode; and a buffer layer provided between the first electrode and the photoelectric conversion layer, and having an interface, to which an organic molecule or a halogen element is coordinated, with the photoelectric conversion layer.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: July 21, 2020
    Assignee: Sony Corporation
    Inventors: Michinori Shiomi, Syuuiti Takizawa, Takeru Bessho, Hideki Ono, Yosuke Saito, Yoshiaki Obana, Daisuke Hobara
  • Semiconductor nanoparticle dispersion, a photoelectric conversion element, and an image pickup device for substantially uniform absorption edge wavelength
    Patent number: 10580913
    Abstract: A semiconductor nanoparticle dispersion is provided. The semiconductor nanoparticle including a plurality of semiconductor nanoparticles having a radius equal to or larger than an exciton Bohr radius; and a solvent dispersed with the plurality of semiconductor nanoparticles.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: March 3, 2020
    Assignee: SONY CORPORATION
    Inventors: Michinori Shiomi, Takeru Bessho
  • Dispersion material, photoelectric conversion device, and imaging unit
    Patent number: 10361241
    Abstract: A dispersion material includes: a plurality of semiconductor nanoparticles; and an adsorption molecule configured to selectively absorb light having a predetermined wavelength and adsorbed to each of the plurality of semiconductor nanoparticles, the adsorption molecule having a plane aligned to be non-parallel to a direction from a center portion of each of the plurality of semiconductor nanoparticles toward an adsorption portion of each of the plurality of semiconductor nanoparticles.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: July 23, 2019
    Assignee: Sony Corporation
    Inventors: Takeru Bessho, Daisuke Hobara, Michinori Shiomi
  • SEMICONDUCTOR NANOPARTICLE DISPERSION, FOR A PHOTOELECTRIC CONVERSION LAYER, AND IMAGE PICKUP DEVICE
    Publication number: 20180308994
    Abstract: A semiconductor nanoparticle dispersion is provided. The semiconductor nanoparticle including a plurality of semiconductor nanoparticles having a radius equal to or larger than an exciton Bohr radius; and a solvent dispersed with the plurality of semiconductor nanoparticles.
    Type: Application
    Filed: June 29, 2018
    Publication date: October 25, 2018
    Inventors: MICHINORI SHIOMI, TAKERU BESSHO
  • PHOTOELECTRIC CONVERSION DEVICE AND IMAGING DEVICE
    Publication number: 20180294315
    Abstract: A photoelectric conversion device of an embodiment of the technology includes: a first electrode and a second electrode facing each other; a photoelectric conversion layer provided between the first electrode and the second electrode; and a buffer layer provided between the first electrode and the photoelectric conversion layer, and having an interface, to which an organic molecule or a halogen element is coordinated, with the photoelectric conversion layer.
    Type: Application
    Filed: August 16, 2016
    Publication date: October 11, 2018
    Applicant: SONY CORPORATION
    Inventors: Michinori SHIOMI, Syuuiti TAKIZAWA, Takeru BESSHO, Hideki ONO, Yosuke SAITO, Yoshiaki OBANA, Daisuke HOBARA
  • Semiconductor nanoparticle dispersion for a photoelectric conersion layer
    Patent number: 10014422
    Abstract: A semiconductor nanoparticle dispersion is provided. The semiconductor nanoparticle including a plurality of semiconductor nanoparticles having a radius equal to or larger than an exciton Bohr radius; and a solvent dispersed with the plurality of semiconductor nanoparticles.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: July 3, 2018
    Assignee: SONY CORPORATION
    Inventors: Michinori Shiomi, Takeru Bessho
  • SEMICONDUCTOR NANOPARTICLE DISPERSION, PHOTOELECTRIC CONVERSION ELEMENT, AND IMAGE PICKUP DEVICE
    Publication number: 20160293783
    Abstract: A semiconductor nanoparticle dispersion is provided. The semiconductor nanoparticle including a plurality of semiconductor nanoparticles having a radius equal to or larger than an exciton Bohr radius; and a solvent dispersed with the plurality of semiconductor nanoparticles.
    Type: Application
    Filed: December 17, 2014
    Publication date: October 6, 2016
    Inventors: MICHINORI SHIOMI, TAKERU BESSHO
  • DISPERSION MATERIAL, PHOTOELECTRIC CONVERSION DEVICE, AND IMAGING UNIT
    Publication number: 20150189196
    Abstract: A dispersion material includes: a plurality of semiconductor nanoparticles; and an adsorption molecule configured to selectively absorb light having a predetermined wavelength and adsorbed to each of the plurality of semiconductor nanoparticles, the adsorption molecule having a plane aligned to be non-parallel to a direction from a center portion of each of the plurality of semiconductor nanoparticles toward an adsorption portion of each of the plurality of semiconductor nanoparticles.
    Type: Application
    Filed: December 12, 2014
    Publication date: July 2, 2015
    Inventors: Takeru BESSHO, Daisuke HOBARA, Michinori SHIOMI