Patents by Inventor Tomomasa Sato

Tomomasa Sato 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: 11942545
    Abstract: A semiconductor device of an embodiment includes a substrate, a first electrode, a second electrode, the first electrode provided between the substrate and the second electrode, the oxide semiconductor layer in contact with the first electrode, an oxide semiconductor layer between the first electrode and the second electrode, the oxide semiconductor layer contains Zn and at least one first element selected from In, Ga, Si, Al, and Sn; a conductive layer between the oxide semiconductor layer and the second electrode, the conductive layer in contact with the second electrode, the conductive layer contains O and at least one second element selected from the group consisting of In, Ga, Si, Al, Sn, Zn, and Ti, a gate electrode; and a gate insulating layer between the oxide semiconductor layer and the gate electrode.
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: March 26, 2024
    Assignee: Kioxia Corporation
    Inventors: Yuta Sato, Tomomasa Ueda, Nobuyoshi Saito, Keiji Ikeda
  • Patent number: 8273517
    Abstract: An aspect of the present invention provides a method of manufacturing an electrophotographic photoreceptor. The method includes forming at least one layer selected from the group consisting of an undercoat layer, a photosensitive layer, and a protective layer, by jetting by an inkjet method a first coating liquid and a second coating liquid from liquid drop discharging heads which are different from each other, and mixing the first coating liquid and the second coating liquid on a conductive substrate. The first coating liquid and the second coating liquid react with each other when they are mixed.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: September 25, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tomotake Inagaki, Kazuyuki Tada, Tomomasa Sato, Masaru Agatsuma
  • Publication number: 20120134713
    Abstract: An aspect of the present invention provides a method of manufacturing an electrophotographic photoreceptor. The method includes forming at least one layer selected from the group consisting of an undercoat layer, a photosensitive layer, and a protective layer, by jetting by an inkjet method a first coating liquid and a second coating liquid from liquid drop discharging heads which are different from each other, and mixing the first coating liquid and the second coating liquid on a conductive substrate. The first coating liquid and the second coating liquid react with each other when they are mixed.
    Type: Application
    Filed: February 7, 2012
    Publication date: May 31, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tomotake INAGAKI, Kazuyuki TADA, Tomomasa SATO, Masaru AGATSUMA
  • Patent number: 8133645
    Abstract: An aspect of the present invention provides a method of manufacturing an electrophotographic photoreceptor. The method includes forming at least one layer selected from the group consisting of an undercoat layer, a photosensitive layer, and a protective layer, by jetting by an inkjet method a first coating liquid and a second coating liquid from liquid drop discharging heads which are different from each other, and mixing the first coating liquid and the second coating liquid on a conductive substrate. The first coating liquid and the second coating liquid react with each other when they are mixed.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: March 13, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tomotake Inagaki, Kazuyuki Tada, Tomomasa Sato, Masaru Agatsuma
  • Patent number: 7951516
    Abstract: The electrophotographic photoreceptor of the present invention includes a cylindrical support; a charge-generating layer and a charge-transporting layer that are layered onto the cylindrical support in this sequence from the cylindrical support side. The charge-transporting layer includes a charge transport material, and resins including a curable resin and a thermoplastic resin. The proportion of the content of the curable resin with respect to the total amount of the resins in the charge-transporting layer increases in the layer thickness direction with distance from the charge-generating layer side.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: May 31, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tomotake Inagaki, Kazuyuki Tada, Tomomasa Sato, Naoki Morita, Kenji Ikeda
  • Patent number: 7887981
    Abstract: The electrophotographic photoreceptor of the present invention includes a cylindrical support, a photosensitive layer and an outermost surface layer that are layered onto the cylindrical support in this sequence from the cylindrical support side. The outermost surface layer includes a charge transport material and a curable resin. The proportion of the content of the curable resin in the outermost surface layer increases in the layer thickness direction with distance from the photosensitive layer side. The process cartridge and electrophotographic apparatus of the present invention are provided with the electrophotographic photoreceptor.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: February 15, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tomotake Inagaki, Kazuyuki Tada, Tomomasa Sato, Naoki Morita, Kenji Ikeda
  • Patent number: 7745796
    Abstract: In a planar radiation detector having a substrate; a charge-collection electrode; a radiation-induced-charge conversion film formed mainly of amorphous selenium; and an upper electrode which transmits radiation, or in a planar radiation detector having a substrate; a charge-collection electrode; a light-induced-charge conversion film which is formed mainly of amorphous selenium and generates electric charge when the light-induced-charge conversion film is irradiated with visible light which has passed through an upper electrode; the upper electrode which transmits the visible light emitted from a fluorescent layer; and the fluorescent layer formed of a fluorescent material which converts a radiation carrying image information into the visible light, the radiation-induced-charge conversion film or the light-induced-charge conversion film is formed of amorphous selenium or amorphous selenium alloy and has a residual oxygen concentration of 35 ppm or lower.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: June 29, 2010
    Assignees: FUJIFILM Corporation, Fuji Xerox Co., Ltd.
    Inventors: Shinji Imai, Tomomasa Sato
  • Patent number: 7642026
    Abstract: The invention provides an electrophotographic photoreceptor that includes a cylindrical support, and a charge-generating layer and a charge-transporting layer on the cylindrical support, wherein a content per unit volume of a charge-generating material in the charge-generating layer increases from a center portion in an axial direction of the cylindrical support towards both end portions thereof, and a thickness of the charge-generating layer in an axial direction of the cylindrical support is 95% or more and 105% or less relative to an average thickness of the charge-generating layer.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: January 5, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kazuyuki Tada, Tomotake Inagaki, Masaru Agatsuma, Tomomasa Sato
  • Patent number: 7642025
    Abstract: The invention provides an electrophotographic photoreceptor having a cylindrical support, and a charge-generating layer and a charge-transporting layer on or above the cylindrical support, wherein the thickness of the charge-generating layer is increased from the central portion in the axial direction of the cylindrical support towards both end portions thereof, and the difference in thickness between the two end portions is 2.5% or less of an average thickness of the charge-generating layer. Also disclosed are a method of producing the electrophotographic photoreceptor, a process cartridge including the electrophotographic photoreceptor, and an image-forming apparatus.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: January 5, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kazuyuki Tada, Masaru Agatsuma, Tomotake Inagaki, Tomomasa Sato, Toru Asahi, Naoki Morita, Kenji Ikeda
  • Publication number: 20080299473
    Abstract: An aspect of the present invention provides a method of manufacturing an electrophotographic photoreceptor. The method includes forming at least one layer selected from the group consisting of an undercoat layer, a photosensitive layer, and a protective layer, by jetting by an inkjet method a first coating liquid and a second coating liquid from liquid drop discharging heads which are different from each other, and mixing the first coating liquid and the second coating liquid on a conductive substrate. The first coating liquid and the second coating liquid react with each other when they are mixed.
    Type: Application
    Filed: February 27, 2008
    Publication date: December 4, 2008
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tomotake INAGAKI, Kazuyuki TADA, Tomomasa SATO, Masaru AGATSUMA
  • Publication number: 20080224049
    Abstract: In a planar radiation detector having a substrate; a charge-collection electrode; a radiation-induced-charge conversion film formed mainly of amorphous selenium; and an upper electrode which transmits radiation, or in a planar radiation detector having a substrate; a charge-collection electrode; a light-induced-charge conversion film which is formed mainly of amorphous selenium and generates electric charge when the light-induced-charge conversion film is irradiated with visible light which has passed through an upper electrode; the upper electrode which transmits the visible light emitted from a fluorescent layer; and the fluorescent layer formed of a fluorescent material which converts a radiation carrying image information into the visible light, the radiation-induced-charge conversion film or the light-induced-charge conversion film is formed of amorphous selenium or amorphous selenium alloy and has a residual oxygen concentration of 35 ppm or lower.
    Type: Application
    Filed: March 11, 2008
    Publication date: September 18, 2008
    Applicants: FUJIFILM Corporation, Fuji Xerox Co., Ltd.
    Inventors: Shinji IMAI, Tomomasa Sato
  • Publication number: 20080102390
    Abstract: The electrophotographic photoreceptor of the present invention includes a cylindrical support, a photosensitive layer and an outermost surface layer that are layered onto the cylindrical support in this sequence from the cylindrical support side. The outermost surface layer includes a charge transport material and a curable resin. The proportion of the content of the curable resin in the outermost surface layer increases in the layer thickness direction with distance from the photosensitive layer side. The process cartridge and electrophotographic apparatus of the present invention are provided with the electrophotographic photoreceptor.
    Type: Application
    Filed: May 23, 2007
    Publication date: May 1, 2008
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tomotake Inagaki, Kazuyuki Tada, Tomomasa Sato, Naoki Morita, Kenji Ikeda
  • Publication number: 20080102389
    Abstract: The electrophotographic photoreceptor of the present invention includes a cylindrical support; a charge-generating layer and a charge-transporting layer that are layered onto the cylindrical support in this sequence from the cylindrical support side. The charge-transporting layer includes a charge transport material, and resins including a curable resin and a thermoplastic resin. The proportion of the content of the curable resin with respect to the total amount of the resins in the charge-transporting layer increases in the layer thickness direction with distance from the charge-generating layer side.
    Type: Application
    Filed: May 29, 2007
    Publication date: May 1, 2008
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tomotake Inagaki, Kazuyuki Tada, Tomomasa Sato, Naoki Morita, Kenji Ikeda
  • Publication number: 20080070135
    Abstract: The invention provides an electrophotographic photoreceptor that includes a cylindrical support, and a charge-generating layer and a charge-transporting layer on the cylindrical support, wherein a content per unit volume of a charge-generating material in the charge-generating layer increases from a center portion in an axial direction of the cylindrical support towards both end portions thereof, and a thickness of the charge-generating layer in an axial direction of the cylindrical support is 95% or more and 105% or less relative to an average thickness of the charge-generating layer.
    Type: Application
    Filed: April 2, 2007
    Publication date: March 20, 2008
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kazuyuki Tada, Tomotake Inagaki, Masaru Agatsuma, Tomomasa Sato
  • Publication number: 20080070134
    Abstract: The invention provides an electrophotographic photoreceptor having a cylindrical support, and a charge-generating layer and a charge-transporting layer on or above the cylindrical support, wherein the thickness of the charge-generating layer is increased from the central portion in the axial direction of the cylindrical support towards both end portions thereof, and the difference in thickness between the two end portions is 2.5% or less of an average thickness of the charge-generating layer. Also disclosed are a method of producing the electrophotographic photoreceptor, a process cartridge including the electrophotographic photoreceptor, and an image-forming apparatus.
    Type: Application
    Filed: April 4, 2007
    Publication date: March 20, 2008
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kazuyuki Tada, Masaru Agatsuma, Tomotake Inagaki, Tomomasa Sato, Toru Asahi, Naoki Morita, Kenji Ikeda
  • Patent number: 6280392
    Abstract: An infant condition monitoring system has a sensor sheet including uniformly arranged plural pressure sensitive load cells. An ECU in an electronic unit connected to the sensor sheet calculates an infant's breathing signal, sleeping posture and weight data. Those signal and data are converted into data signals to modulate a carrier signal thereby. A transmitter in the electronic unit transmits a radio signal resulting from the modulation. A monitoring unit is constructed to be carried by a care provider. A receiver in the monitoring unit demodulates the received radio signal. An ECU reproduces the data signals including the breathing signal, sleeping posture and weight data, and determines a respiration rate, sleeping posture and weight. A display displays the respiration rate, sleeping posture and weight, and a speaker produces an output sound in correspondence with the breathing signal.
    Type: Grant
    Filed: July 27, 1999
    Date of Patent: August 28, 2001
    Assignee: Denso Corporation
    Inventors: Tomohisa Yoshimi, Masahiko Ito, Kenichi Yanai, Tomomasa Sato, Tatuya Harada, Taketoshi Mori
  • Patent number: 5849454
    Abstract: A coating apparatus comprises a coating vessel holding a coating liquid with a liquid leakage preventing member having an opening. A cylindrical member such as a cylindrical support for supporting a photosensitive member is inserted into the opening and the cylindrical member is moved relative to the coating liquid vessel in the vertical direction. A scraping member for scraping the coating liquid is at least partially immersed in the coating liquid, or is positioned above the surface of the coating liquid in the coating liquid vessel, the scraping member being almost concentric to the cylindrical member and movable in the radial direction of the cylindrical member. The cylindrical member is axially aligned with the scraping member using coating liquid pressure applied to the scraping member to coincide the center of the scraping member with the center of the cylindrical member.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: December 15, 1998
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kazuyuki Tada, Mamoru Fujita, Masaru Agatsuma, Tomomasa Sato
  • Patent number: 4855961
    Abstract: Imaging apparatus including an array of transmitters for simultaneously transmitting more than two coded signal beams in different directions to cover different regions of a field of view, said beams being modified by objects within said field of view, signal means for providing individual coded signals to respective transmitters, at least one receiver for simultaneously receiving plural coded modified signals derived from the coded signal beams, and a processor for separating the plural coded modified signals of different codes and processing them into an image signal.
    Type: Grant
    Filed: July 31, 1986
    Date of Patent: August 8, 1989
    Assignee: Woods Hole Oceanographic Institute
    Inventors: Jules S. Jaffe, Philippe Cassereau, Tomomasa Sato