Patents by Inventor Yoichi Fujikawa

Yoichi Fujikawa 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: 20180143476
    Abstract: An input-cable display device is provided including a first substrate on which a pair of electrodes that drive a liquid crystal layer are provided; a second substrate wherein the liquid crystal layer is formed within an inner surface of the second substrate between the first substrate and the second substrate; a detection electrode and a dielectric film that are laminated on an outer surface of the second substrate; a detector; a light shielding film; and a color filter layer, wherein the pair of electrodes provided on the first substrate comprises a pixel electrode and a common electrode, and the light shielding film and the color filter layer are laminated on the inner surface of the second substrate.
    Type: Application
    Filed: January 4, 2018
    Publication date: May 24, 2018
    Inventors: Sumio UTSUNOMIYA, Takeshi KOSHIHARA, Takeyoshi USHIKI, Yoichi FUJIKAWA
  • Patent number: 9891458
    Abstract: An input-cable display device is provided including a first substrate on which a pair of electrodes that drive a liquid crystal layer are provided; a second substrate wherein the liquid crystal layer is formed within an inner surface of the second substrate between the first substrate and the second substrate; a detection electrode and a dielectric film that are laminated on an outer surface of the second substrate; a detector; a light shielding film; and a color filter layer, wherein the pair of electrodes provided on the first substrate comprises a pixel electrode and a common electrode, and the light shielding film and the color filter layer are laminated on the inner surface of the second substrate.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: February 13, 2018
    Assignee: Japan Display Inc.
    Inventors: Sumio Utsunomiya, Takeshi Koshihara, Takeyoshi Ushiki, Yoichi Fujikawa
  • Publication number: 20160291371
    Abstract: An input-cable display device is provided including a first substrate on which a pair of electrodes that drive a liquid crystal layer are provided; a second substrate wherein the liquid crystal layer is formed within an inner surface of the second substrate between the first substrate and the second substrate; a detection electrode and a dielectric film that are laminated on an outer surface of the second substrate; a detector; a light shielding film; and a color filter layer, wherein the pair of electrodes provided on the first substrate comprises a pixel electrode and a common electrode, and the light shielding film and the color filter layer are laminated on the inner surface of the second substrate.
    Type: Application
    Filed: June 9, 2016
    Publication date: October 6, 2016
    Inventors: Sumio UTSUNOMIYA, Takeshi KOSHIHARA, Takeyoshi USHIKI, Yoichi FUJIKAWA
  • Publication number: 20150277174
    Abstract: An input-cable display device is provided including a first substrate on which a pair of electrodes that drive a liquid crystal layer are provided; a second substrate wherein the liquid crystal layer is formed within an inner surface of the second substrate between the first substrate and the second substrate; a detection electrode and a dielectric film that are laminated on an outer surface of the second substrate; a detector; a light shielding film; and a color filter layer, wherein the pair of electrodes provided on the first substrate comprises a pixel electrode and a common electrode, and the light shielding film and the color filter layer are laminated on the inner surface of the second substrate.
    Type: Application
    Filed: May 27, 2015
    Publication date: October 1, 2015
    Inventors: Sumio UTSUNOMIYA, Takeshi KOSHIHARA, Takeyoshi USHIKI, Yoichi FUJIKAWA
  • Patent number: 9069401
    Abstract: An input-capable display device includes a first substrate, a second substrate, a detection electrode, a dielectric film, and a detector. A pair of electrodes that drive a liquid crystal layer are provided on the first substrate. The second substrate is opposed to the first substrate through the liquid crystal layer. The detection electrode and the dielectric film are laminated on an outer surface of the second substrate. The detector detects a position at which an electrostatic capacitance is formed with the detection electrode through the dielectric film. The second substrate includes a shield conductor that is formed on a side adjacent to the liquid crystal layer. An electric potential of the shield conductor is fixed.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: June 30, 2015
    Assignee: JAPAN DISPLAY INC.
    Inventors: Sumio Utsunomiya, Takeshi Koshihara, Takeyoshi Ushiki, Yoichi Fujikawa
  • Publication number: 20130250380
    Abstract: A virtual image display apparatus includes an organic EL device that outputs light having one kind of wavelength band, a light guide member, and a reflection-type volume hologram that is disposed on a first face of the light guide member and diffracts and reflects light of a predetermined wavelength band of the light that has entered. The organic EL device includes an optical resonance structure that causes the above-mentioned light of one-kind wavelength band to resonate.
    Type: Application
    Filed: February 14, 2013
    Publication date: September 26, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yoichi FUJIKAWA, Osamu YOKOYAMA, Takehiko KUBOTA
  • Patent number: 7948179
    Abstract: The invention provides an organic electroluminescence device having an input function, including: an element substrate that has a light-emitting layer sandwiched between a pair of electrodes; a sealing substrate that seals the element substrate; a first detection electrode that is provided at the inner-surface side of the sealing substrate; a second detection electrode that is provided at the outer-surface side of the sealing substrate; the second detection electrode having a detection axis that is not the same as that of the first detection electrode; a dielectric film that is formed on the second detection electrode; and a detection unit that detects a position at which electrostatic capacitance is generated via the dielectric film between the first detection electrode and the second detection electrode.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: May 24, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Takeshi Koshihara, Sumio Utsunomiya, Takeyoshi Ushiki, Yoichi Fujikawa
  • Patent number: 7876037
    Abstract: The invention provides an organic electroluminescence device having an input function, including: an element substrate that has a light-emitting layer sandwiched between a positive electrode and negative electrode in each of a plurality of sub pixel regions that are arrayed in a matrix pattern; a sealing substrate that seals the element substrate; and a touch panel section that is provided at the outer-surface side of the sealing substrate. In such a configuration of the organic electroluminescence device having an input function according to an aspect of the invention, the negative electrode is formed on an individual basis so as to correspond to the display color of each of the sub pixel regions; and the sealing substrate has a shield conductor that is formed on the element-substrate side of the sealing substrate, the shield conductor having a fixed potential.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: January 25, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Takeshi Koshihara, Sumio Utsunomiya, Takeyoshi Ushiki, Yoichi Fujikawa
  • Publication number: 20100214266
    Abstract: The invention provides an organic electroluminescence device having an input function, including: an element substrate that has a light-emitting layer sandwiched between a pair of electrodes; a sealing substrate that seals the element substrate; a first detection electrode that is provided at the inner-surface side of the sealing substrate; a second detection electrode that is provided at the outer-surface side of the sealing substrate; the second detection electrode having a detection axis that is not the same as that of the first detection electrode; a dielectric film that is formed on the second detection electrode; and a detection unit that detects a position at which electrostatic capacitance is generated via the dielectric film between the first detection electrode and the second detection electrode.
    Type: Application
    Filed: May 4, 2010
    Publication date: August 26, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takeshi Koshihara, Sumio Utsunomiya, Takeyoshi Ushiki, Yoichi Fujikawa
  • Patent number: 7737637
    Abstract: The invention provides an organic electroluminescence device having an input function, including: an element substrate that has a light-emitting layer sandwiched between a pair of electrodes; a sealing substrate that seals the element substrate; a first detection electrode that is provided at the inner-surface side of the sealing substrate; a second detection electrode that is provided at the outer-surface side of the sealing substrate; the second detection electrode having a detection axis that is not the same as that of the first detection electrode; a dielectric film that is formed on the second detection electrode; and a detection unit that detects a position at which electrostatic capacitance is generated via the dielectric film between the first detection electrode and the second detection electrode.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: June 15, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Takeshi Koshihara, Sumio Utsunomiya, Takeyoshi Ushiki, Yoichi Fujikawa
  • Patent number: 7633566
    Abstract: An input-capable display device includes a first substrate a second substrate, a detection electrode, a dielectric film, and a detector. A pair of electrodes that drive a liquid crystal layer are provided on the first substrate. The second substrate is opposed to the first substrate through the liquid crystal layer. The detection electrode and the dielectric film are laminated on an outer surface of the second substrate. The detector detects a position at which an electrostatic capacitance is formed with the detection electrode through the dielectric film. The second substrate includes a shield conductor that is provided on a side adjacent to the liquid crystal layer. An electric potential of the shield conductor is fixed. The shield conductor has a plurality of birefringent structures that are arranged in a stripe.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: December 15, 2009
    Assignee: Seiko Epson Corporation
    Inventors: Sumio Utsunomiya, Takeshi Koshihara, Takeyoshi Ushiki, Yoichi Fujikawa
  • Patent number: 7490973
    Abstract: A lighting device includes a board mounting a light source, a first hole provided in the board, a projecting part protruded inside the first hole from a periphery of the first hole, a light guide which receives a light emitted from the light source through a light receiving plane, and transmits the light from a light transmitting plane, and the first protrusion which is integrally formed in the light guide and is inserted into the first hole, wherein the projecting part presses a side of the first protrusion so that the board can move toward the light receiving plane.
    Type: Grant
    Filed: February 6, 2006
    Date of Patent: February 17, 2009
    Assignee: Seiko Epson Corporation
    Inventors: Yoichi Fujikawa, Osamu Eda
  • Publication number: 20080211394
    Abstract: The invention provides an organic electroluminescence device having an input function, including: an element substrate that has a light-emitting layer sandwiched between a positive electrode and negative electrode in each of a plurality of sub pixel regions that are arrayed in a matrix pattern; a sealing substrate that seals the element substrate; and a touch panel section that is provided at the outer-surface side of the sealing substrate. In such a configuration of the organic electroluminescence device having an input function according to an aspect of the invention, the negative electrode is formed on an individual basis so as to correspond to the display color of each of the sub pixel regions; and the sealing substrate has a shield conductor that is formed on the element-substrate side of the sealing substrate, the shield conductor having a fixed potential.
    Type: Application
    Filed: February 7, 2008
    Publication date: September 4, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takeshi KOSHIHARA, Sumio UTSUNOMIYA, Takeyoshi USHIKI, Yoichi FUJIKAWA
  • Publication number: 20080211395
    Abstract: The invention provides an organic electroluminescence device having an input function, including: an element substrate that has a light-emitting layer sandwiched between a pair of electrodes; a sealing substrate that seals the element substrate; a first detection electrode that is provided at the inner-surface side of the sealing substrate; a second detection electrode that is provided at the outer-surface side of the sealing substrate; the second detection electrode having a detection axis that is not the same as that of the first detection electrode; a dielectric film that is formed on the second detection electrode; and a detection unit that detects a position at which electrostatic capacitance is generated via the dielectric film between the first detection electrode and the second detection electrode.
    Type: Application
    Filed: February 12, 2008
    Publication date: September 4, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takeshi KOSHIHARA, Sumio UTSUNOMIYA, Takeyoshi USHIKI, Yoichi FUJIKAWA
  • Publication number: 20080180407
    Abstract: An input-capable display device includes a first substrate, a second substrate, a detection electrode, a dielectric film, and a detector. A pair of electrodes that drive a liquid crystal layer are provided on the first substrate. The second substrate is opposed to the first substrate through the liquid crystal layer. The detection electrode and the dielectric film are laminated on an outer surface of the second substrate. The detector detects a position at which an electrostatic capacitance is formed with the detection electrode through the dielectric film. The second substrate includes a shield conductor that is formed on a side adjacent to the liquid crystal layer. An electric potential of the shield conductor is fixed.
    Type: Application
    Filed: December 14, 2007
    Publication date: July 31, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Sumio UTSUNOMIYA, Takeshi KOSHIHARA, Takeyoshi USHIKI, Yoichi FUJIKAWA
  • Publication number: 20080180584
    Abstract: An input-capable display device includes a first substrate a second substrate, a detection electrode, a dielectric film, and a detector. A pair of electrodes that drive a liquid crystal layer are provided on the first substrate. The second substrate is opposed to the first substrate through the liquid crystal layer. The detection electrode and the dielectric film are laminated on an outer surface of the second substrate. The detector detects a position at which an electrostatic capacitance is formed with the detection electrode through the dielectric film. The second substrate includes a shield conductor that is provided on a side adjacent to the liquid crystal layer. An electric potential of the shield conductor is fixed. The shield conductor has a plurality of birefringent structures that are arranged in a stripe.
    Type: Application
    Filed: December 14, 2007
    Publication date: July 31, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Sumio UTSUNOMIYA, Takeshi KOSHIHARA, Takeyoshi USHIKI, Yoichi FUJIKAWA
  • Publication number: 20060203515
    Abstract: A lighting device includes a board mounting a light source, a first hole provided in the board, a projecting part protruded inside the first hole from a periphery of the first hole, a light guide which receives a light emitted from the light source through a light receiving plane, and transmits the light from a light transmitting plane, and the first protrusion which is integrally formed in the light guide and is inserted into the first hole, wherein the projecting part presses a side of the first protrusion so that the board can move toward the light receiving plane.
    Type: Application
    Filed: February 6, 2006
    Publication date: September 14, 2006
    Inventors: Yoichi Fujikawa, Osamu Eda