Patents by Inventor Keiji Nose

Keiji Nose 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: 20220208270
    Abstract: A method for programming three page user data in a memory array of a non-volatile memory system, comprising converting each three-bit value data pattern of the user data into a representative pair of two-bit data values, simultaneously programming two single-state memory cells with a first of the pair of representative two-bit data values, wherein the two single-state memory cells are located along a first common word line of two memory cell strings, and simultaneously programming two single-state memory cells with a second of the pair of representative two-bit data values, wherein the two single-state memory cells are located along a second common word line of the two memory cell strings.
    Type: Application
    Filed: December 29, 2020
    Publication date: June 30, 2022
    Applicant: SanDisk Technologies LLC
    Inventors: Keiji Nose, Hiroki Yabe, Masahiro Kano, Yuki Fujita
  • Patent number: 9940869
    Abstract: A display device includes a display panel and a display driver driving the display panel. The display driver is connected to a host with a clock lane and at least one a data lane. The display driver includes: an interface circuit configured to receive an external clock signal from the host via the clock lane, receive a data signal from the host via the data lane, and output reception data transmitted over the data signal; a control circuit configured to output an internal clock signal synchronous with the external clock signal; and a drive circuitry configured to drive the display panel in response to image data included in the reception data in synchronization with the internal clock signal fed from the control circuit. The control circuit is configured to feed the internal clock signal in response to a type of a reception packet included in the reception data.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: April 10, 2018
    Assignee: Synaptics Japan GK
    Inventor: Keiji Nose
  • Publication number: 20160293096
    Abstract: A display device includes a display panel and a display driver driving the display panel. The display driver is connected to a host with a clock lane and at least one a data lane. The display driver includes: an interface circuit configured to receive an external clock signal from the host via the clock lane, receive a data signal from the host via the data lane, and output reception data transmitted over the data signal; a control circuit configured to output an internal clock signal synchronous with the external clock signal; and a drive circuitry configured to drive the display panel in response to image data included in the reception data in synchronization with the internal clock signal fed from the control circuit. The control circuit is configured to feed the internal clock signal in response to a type of a reception packet included in the reception data.
    Type: Application
    Filed: March 23, 2016
    Publication date: October 6, 2016
    Inventor: Keiji NOSE
  • Patent number: 9360833
    Abstract: The present invention provides a charging member having an elastic layer on a surface thereof in which occurrence of compression set is reduced. The charging member includes an electro-conductive support and an elastic layer provided on the support as a surface layer, wherein the elastic layer is a rubber layer made of a crosslinked product of a rubber mixture including acrylonitrile butadiene rubber and polybutadiene, the polybutadiene includes 1,2-syndiotactic polybutadiene, and the elastic layer is formed by irradiating a surface of the rubber layer with electron rays.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: June 7, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kenya Terada, Masaaki Harada, Hiroaki Watanabe, Takumi Furukawa, Keiji Nose
  • Patent number: 9008552
    Abstract: The present invention provides a charging member which has a low compression set and which can suppress the generation of image defects. A layer of an unvulcanized rubber composition including an unvulcanized acrylonitrile butadiene rubber and N,N?-methylenebis(1,4-phenylene)dimaleimide is vulcanized.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: April 14, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroaki Watanabe, Masaaki Harada, Keiji Nose
  • Patent number: 8991053
    Abstract: To provide a charging member that can not easily cause faulty cleaning on a photosensitive member while having a flexibility high enough to form a nip between it and the photosensitive member in a sufficient width. The charging member has an electro-conductive support and an elastic layer that is a surface layer, which elastic layer has at its surface a region having been cured by irradiation with electron rays, where this region supports spherical polyethylene particles in such a state that the spherical polyethylene particles are exposed to the surface of the elastic layer, thereby making the surface roughened.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: March 31, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroaki Watanabe, Masaaki Harada, Takumi Furukawa, Keiji Nose, Kenya Terada
  • Patent number: 8923732
    Abstract: Provided is a charging member capable of suppressing occurrence of compression set while having flexibility enough to ensure a nip with a photosensitive member. The charging member comprises a support and an elastic layer, wherein the elastic layer has an MD-1 hardness of from 55 to 85° at the surface thereof, and has a universal hardness of 2.0 to 20.0 N/mm2 at an indentation depth of 5 ?m from the surface thereof.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: December 30, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Harada, Hiroaki Watanabe, Keiji Nose
  • Patent number: 8834333
    Abstract: A charging member is provided which has a low electrical resistance, has less non-uniformity or environmental dependence of the electrical resistance, may less undergo electrification deterioration even when used for a long period of time, and is free of any occurrence of faulty images such as horizontal lines attributable to charging. The charging member is formed of a support with a good electrical conductivity and an elastic layer consisting of at least one layer on the support, and the elastic layer is formed of a semiconductive vulcanized rubber in which carbon black has been dispersed as conductive particles in a binder polymer containing a polymer having a butadiene skeleton, having been modified at a molecular terminal thereof with a specific atomic group.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: September 16, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroaki Watanabe, Masaaki Harada, Keiji Nose
  • Publication number: 20140219681
    Abstract: Provided is a charging member capable of suppressing occurrence of compression set while having flexibility enough to ensure a nip with a photosensitive member. The charging member comprises a support and an elastic layer, wherein the elastic layer has an MD-1 hardness of from 55 to 85° at the surface thereof, and has a universal hardness of 2.0 to 20.0 N/mm2 at an indentation depth of 5 ?m from the surface thereof.
    Type: Application
    Filed: July 2, 2012
    Publication date: August 7, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masaaki Harada, Hiroaki Watanabe, Keiji Nose
  • Publication number: 20140205323
    Abstract: The present invention provides a charging member which has a low compression set and which can suppress the generation of image defects. A layer of an unvulcanized rubber composition including an unvulcanized acrylonitrile butadiene rubber and N,N?-methylenebis(1,4-phenylene)dimaleimide is vulcanized.
    Type: Application
    Filed: August 8, 2012
    Publication date: July 24, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hiroaki Watanabe, Masaaki Harada, Keiji Nose
  • Patent number: 8781369
    Abstract: A roller for electrophotography has an electrically conductive support and an elastic layer as a surface layer. The elastic layer holds spherical particles each having a plane on their peripheral surfaces, in such a way that part or the whole of the plane comes exposed to the surface of the elastic layer, and the plane of each of the spherical particles standing exposed to the surface of the elastic layer and a plane that is i) orthogonal to a straight line passing through an axis of a section orthogonal to an axis of the roller for electrophotography and being directed toward the peripheral surface of the roller for electrophotography and is ii) tangential to the peripheral surface of the roller for electrophotography form an acute internal angle.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: July 15, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takumi Furukawa, Masaaki Harada, Hiroaki Watanabe, Keiji Nose, Kenya Terada
  • Patent number: 8750762
    Abstract: To provide a charging member that can have a uniform electrical resistance, can not easily change in electrical resistance even by any long-term continuous electrification and, as a result thereof, may cause less change in its charging performance with time. A charging member having a conductive support and an elastic-material layer; the elastic-material layer comprising a vulcanized rubber; the vulcanized rubber being a vulcanized product of a composition which comprises i) a binder polymer comprising a polymer having a butadiene skeleton and ii) carbon black as electrically conductive particles; and the polymer having a butadiene skeleton has a molecular terminal modified with an atomic group having a specific structure.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: June 10, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Harada, Hiroaki Watanabe, Keiji Nose
  • Patent number: 8685601
    Abstract: An electrophotographic member including an electrically conductive substrate and an electrically conductive resin layer corresponding to a surface layer. The resin layer includes electrically conductive particles and a binder resin.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: April 1, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keiji Nose, Masaaki Harada, Hiroaki Watanabe, Takumi Furukawa, Kenya Terada
  • Publication number: 20140023960
    Abstract: An electrophotographic member including an electrically conductive substrate and an electrically conductive resin layer corresponding to a surface layer. The resin layer includes electrically conductive particles and a binder resin.
    Type: Application
    Filed: June 6, 2013
    Publication date: January 23, 2014
    Inventors: Keiji Nose, Masaaki Harada, Hiroaki Watanabe, Takumi Furukawa, Kenya Terada
  • Patent number: 8622881
    Abstract: The conductive member has a conductive support and a conductive elastic layer. The elastic layer is a mixture containing an electron conductive agent and a binder polymer, or a cured product thereof, and the electron conductive agent contains a carbon black satisfying the following characteristics: (i) an average primary particle diameter is 20 nm or more and 30 nm or less; (ii) a DBP oil absorption is 40 ml/100 g or more and 70 ml/100 g or less, and the total amount of CO and CO2 generated by temperature programmed desorption/mass spectrometry is 0.30 mass % or more and 0.80 mass % or less with reference to the carbon black; and (iii) the amount of SO2 generated by the temperature programmed desorption/mass spectrometry is 0.05 mass % or more with reference to the carbon black.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 7, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Harada, Keiji Nose, Hiroaki Watanabe, Takumi Furukawa, Kenya Terada
  • Publication number: 20130310239
    Abstract: The present invention provides a charging member having an elastic layer on a surface thereof in which occurrence of compression set is reduced. The charging member includes an electro-conductive support and an elastic layer provided on the support as a surface layer, wherein the elastic layer is a rubber layer made of a crosslinked product of a rubber mixture including acrylonitrile butadiene rubber and polybutadiene, the polybutadiene includes 1,2-syndiotactic polybutadiene, and the elastic layer is formed by irradiating a surface of the rubber layer with electron rays.
    Type: Application
    Filed: July 19, 2013
    Publication date: November 21, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kenya Terada, Masaaki Harada, Hiroaki Watanabe, Takumi Furukawa, Keiji Nose
  • Publication number: 20130302064
    Abstract: A roller for electrophotography is provided which has an electrically conductive support and an elastic layer as a surface layer, where the elastic layer holds spherical particles each having a plane on their peripheral surfaces, in such a way that part or the whole of the plane comes exposed to the surface of the elastic layer, and the plane of each of the spherical particles standing exposed to the surface of the elastic layer and a plane that is i) orthogonal to a straight line passing through an axis of a section orthogonal to an axis of the roller for electrophotography and being directed toward the peripheral surface of the roller for electrophotography and is ii) tangential to the peripheral surface of the roller for electrophotography forms an acute internal angle.
    Type: Application
    Filed: July 18, 2013
    Publication date: November 14, 2013
    Inventors: Takumi Furukawa, Masaaki Harada, Hiroaki Watanabe, Keiji Nose, Kenya Terada
  • Publication number: 20130272747
    Abstract: To provide a charging member that can not easily cause faulty cleaning on a photosensitive member while having a flexibility high enough to form a nip between it and the photosensitive member in a sufficient width. The charging member has an electro-conductive support and an elastic layer that is a surface layer, which elastic layer has at its surface a region having been cured by irradiation with electron rays, where this region supports spherical polyethylene particles in such a state that the spherical polyethylene particles are exposed to the surface of the elastic layer, thereby making the surface roughened.
    Type: Application
    Filed: June 11, 2013
    Publication date: October 17, 2013
    Inventors: Hiroaki Watanabe, Masaaki Harada, Takumi Furukawa, Keiji Nose, Kenya Terada
  • Patent number: 8538298
    Abstract: To provide a charging member that can not easily cause faulty cleaning. A charging member having a conductive support and an elastic layer that is a surface layer; the elastic layer having on its surface a region having been cured by irradiation with electron rays, where the region having been cured supports at least one type of spherical particles of spherical silica particles, spherical alumina particles and spherical zirconia particles in such a state that the spherical particles are exposed at least in part to the surface of the elastic layer so as to make the surface roughened.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: September 17, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Harada, Toshiro Suzuki, Hiroaki Watanabe, Taichi Sato, Keiji Nose
  • Patent number: 8532535
    Abstract: Provided is a charging member which hardly causes a cleaning failure in a photosensitive member while having such flexibility that a sufficient nip width can be formed with respect to a photosensitive member. The charging member comprises: an electro-conductive support; and an elastic layer as a surface layer, wherein: the elastic layer has a hardened region formed by irradiation with an electron beam; and the hardened region supports a composite particle in a state in which the composite particle is exposed on the surface of the elastic layer, thereby roughening the surface of the elastic layer, and wherein: said composite particle includes a silica-containing porous particle whose surface is coated with a carbon-containing film.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: September 10, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keiji Nose, Masaaki Harada, Hiroaki Watanabe