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).
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Publication number: 20180143476Abstract: 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: ApplicationFiled: January 4, 2018Publication date: May 24, 2018Inventors: Sumio UTSUNOMIYA, Takeshi KOSHIHARA, Takeyoshi USHIKI, Yoichi FUJIKAWA
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Patent number: 9891458Abstract: 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: GrantFiled: June 9, 2016Date of Patent: February 13, 2018Assignee: Japan Display Inc.Inventors: Sumio Utsunomiya, Takeshi Koshihara, Takeyoshi Ushiki, Yoichi Fujikawa
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Publication number: 20160291371Abstract: 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: ApplicationFiled: June 9, 2016Publication date: October 6, 2016Inventors: Sumio UTSUNOMIYA, Takeshi KOSHIHARA, Takeyoshi USHIKI, Yoichi FUJIKAWA
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Publication number: 20150277174Abstract: 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: ApplicationFiled: May 27, 2015Publication date: October 1, 2015Inventors: Sumio UTSUNOMIYA, Takeshi KOSHIHARA, Takeyoshi USHIKI, Yoichi FUJIKAWA
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Patent number: 9069401Abstract: 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: GrantFiled: December 14, 2007Date of Patent: June 30, 2015Assignee: JAPAN DISPLAY INC.Inventors: Sumio Utsunomiya, Takeshi Koshihara, Takeyoshi Ushiki, Yoichi Fujikawa
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Publication number: 20130250380Abstract: 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: ApplicationFiled: February 14, 2013Publication date: September 26, 2013Applicant: SEIKO EPSON CORPORATIONInventors: Yoichi FUJIKAWA, Osamu YOKOYAMA, Takehiko KUBOTA
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Patent number: 7948179Abstract: 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: GrantFiled: May 4, 2010Date of Patent: May 24, 2011Assignee: Seiko Epson CorporationInventors: Takeshi Koshihara, Sumio Utsunomiya, Takeyoshi Ushiki, Yoichi Fujikawa
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Patent number: 7876037Abstract: 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: GrantFiled: February 7, 2008Date of Patent: January 25, 2011Assignee: Seiko Epson CorporationInventors: Takeshi Koshihara, Sumio Utsunomiya, Takeyoshi Ushiki, Yoichi Fujikawa
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Publication number: 20100214266Abstract: 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: ApplicationFiled: May 4, 2010Publication date: August 26, 2010Applicant: SEIKO EPSON CORPORATIONInventors: Takeshi Koshihara, Sumio Utsunomiya, Takeyoshi Ushiki, Yoichi Fujikawa
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Patent number: 7737637Abstract: 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: GrantFiled: February 12, 2008Date of Patent: June 15, 2010Assignee: Seiko Epson CorporationInventors: Takeshi Koshihara, Sumio Utsunomiya, Takeyoshi Ushiki, Yoichi Fujikawa
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Patent number: 7633566Abstract: 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: GrantFiled: December 14, 2007Date of Patent: December 15, 2009Assignee: Seiko Epson CorporationInventors: Sumio Utsunomiya, Takeshi Koshihara, Takeyoshi Ushiki, Yoichi Fujikawa
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Patent number: 7490973Abstract: 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: GrantFiled: February 6, 2006Date of Patent: February 17, 2009Assignee: Seiko Epson CorporationInventors: Yoichi Fujikawa, Osamu Eda
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Publication number: 20080211394Abstract: 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: ApplicationFiled: February 7, 2008Publication date: September 4, 2008Applicant: SEIKO EPSON CORPORATIONInventors: Takeshi KOSHIHARA, Sumio UTSUNOMIYA, Takeyoshi USHIKI, Yoichi FUJIKAWA
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Publication number: 20080211395Abstract: 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: ApplicationFiled: February 12, 2008Publication date: September 4, 2008Applicant: SEIKO EPSON CORPORATIONInventors: Takeshi KOSHIHARA, Sumio UTSUNOMIYA, Takeyoshi USHIKI, Yoichi FUJIKAWA
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Publication number: 20080180407Abstract: 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: ApplicationFiled: December 14, 2007Publication date: July 31, 2008Applicant: SEIKO EPSON CORPORATIONInventors: Sumio UTSUNOMIYA, Takeshi KOSHIHARA, Takeyoshi USHIKI, Yoichi FUJIKAWA
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Publication number: 20080180584Abstract: 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: ApplicationFiled: December 14, 2007Publication date: July 31, 2008Applicant: SEIKO EPSON CORPORATIONInventors: Sumio UTSUNOMIYA, Takeshi KOSHIHARA, Takeyoshi USHIKI, Yoichi FUJIKAWA
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Publication number: 20060203515Abstract: 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: ApplicationFiled: February 6, 2006Publication date: September 14, 2006Inventors: Yoichi Fujikawa, Osamu Eda