Patents by Inventor Suguru Akagawa

Suguru Akagawa 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: 11031441
    Abstract: An electro-optical device includes a first substrate, a second substrate, and a color filter disposed in a layer between the first substrate and the second substrate. An adhesive is disposed in a layer between the color filter and the second substrate. A first overcoat layer is disposed in a layer between the adhesive and the color filter, and a second overcoat layer is disposed in the layer between the adhesive and the color filter and is disposed along the first overcoat layer.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: June 8, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Masanori Iwasaki, Suguru Akagawa, Narumi Ishibashi, Takeshi Koshihara
  • Publication number: 20210028245
    Abstract: A light-emitting device includes a semi-transmissive reflection layer, a first reflection layer that is disposed in a first sub-pixel, a second reflection layer that is disposed in a second sub-pixel, the second sub-pixel that emits same color light as the first sub-pixel, and a light-emitting functional layer that is disposed between the first reflection layer and the semi-transmissive reflection layer, the light-emitting functional layer that is disposed between the second reflection layer and the semi-transmissive reflection layer. A thickness of the light-emitting functional layer in the second sub-pixel is thicker than a thickness of the light-emitting functional layer in the first sub-pixel.
    Type: Application
    Filed: July 23, 2020
    Publication date: January 28, 2021
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Suguru AKAGAWA, Jun IROBE, Takeshi KOSHIHARA
  • Patent number: 10861915
    Abstract: A light-emitting device includes a substrate having a circuit thereon, a first electrode electrically coupled to the circuit, a second electrode, a light-emitting layer, and a sealing layer including a planarization layer, wherein the first electrode is arranged between the substrate and the second electrode, the light-emitting layer is arranged between the first electrode and the second electrode and emits light in accordance with a current flowing through the light-emitting layer, the planarization layer is arranged on an opposite side of the second electrode from a side on which the light-emitting layer is arranged, and an outer edge of the planarization layer is located inward of an outer edge of the light-emitting layer in plan view.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: December 8, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Suguru Akagawa, Ryoichi Nozawa
  • Publication number: 20200295091
    Abstract: An electro-optical device includes a first substrate, a second substrate, and a color filter disposed in a layer between the first substrate and the second substrate. An adhesive is disposed in a layer between the color filter and the second substrate. A first overcoat layer is disposed in a layer between the adhesive and the color filter, and a second overcoat layer is disposed in the layer between the adhesive and the color filter and is disposed along the first overcoat layer.
    Type: Application
    Filed: May 29, 2020
    Publication date: September 17, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Masanori IWASAKI, Suguru AKAGAWA, Narumi ISHIBASHI, Takeshi KOSHIHARA
  • Publication number: 20200227680
    Abstract: An organic electroluminescence device includes a substrate, an organic electroluminescence element disposed on the substrate, a protecting portion configured to protect the organic electroluminescence element, and a resin portion mainly composed of a resin material. The protecting portion includes a first layer mainly composed of a silicon-based inorganic material containing nitrogen, a second layer mainly composed of silicon oxide or aluminum oxide, and a third layer mainly composed of a silicon-based inorganic material containing nitrogen, and the resin portion is disposed at a side surface of the second layer.
    Type: Application
    Filed: January 14, 2020
    Publication date: July 16, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Suguru AKAGAWA, Ryoichi NOZAWA, Takefumi FUKAGAWA
  • Patent number: 10714541
    Abstract: An electro-optical device includes a first substrate including a plurality of light-emitting elements and a color filter provided corresponding to the plurality of light-emitting elements and a second substrate being a light-transmissive substrate and disposed facing the first substrate with an adhesive provided between the first substrate and the second substrate. An adhesive surface of the color filter of the first substrate is provided with protrusions and recesses in a stripe pattern.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: July 14, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Masanori Iwasaki, Suguru Akagawa, Narumi Ishibashi, Takeshi Koshihara
  • Publication number: 20200220116
    Abstract: A method for manufacturing an organic electroluminescence device includes forming an organic electroluminescence element on a substrate, forming, on the organic electroluminescence element, a first layer mainly composed of a silicon-based inorganic material containing nitrogen by a chemical vapor deposition method using plasma, and forming, on the first layer, a second layer mainly composed of silicon oxide by an atomic layer deposition method using plasma.
    Type: Application
    Filed: January 8, 2020
    Publication date: July 9, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takefumi FUKAGAWA, Suguru AKAGAWA, Ryoichi NOZAWA
  • Publication number: 20200066818
    Abstract: A light-emitting device includes a substrate having a circuit thereon, a first electrode electrically coupled to the circuit, a second electrode, a light-emitting layer, and a sealing layer including a planarization layer, wherein the first electrode is arranged between the substrate and the second electrode, the light-emitting layer is arranged between the first electrode and the second electrode and emits light in accordance with a current flowing through the light-emitting layer, the planarization layer is arranged on an opposite side of the second electrode from a side on which the light-emitting layer is arranged, and an outer edge of the planarization layer is located inward of an outer edge of the light-emitting layer in plan view.
    Type: Application
    Filed: August 23, 2019
    Publication date: February 27, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Suguru AKAGAWA, Ryoichi NOZAWA
  • Patent number: 10468462
    Abstract: A manufacturing method of an organic light emitting device including a light emitting element that includes an organic light emitting layer, a sealing layer above the light emitting element, and a color filter layer above the sealing layer. The color filter layer includes a first color filter that transmits light of a first wavelength region and a second color filter that transmits light of a second wavelength region, an area of the second color filter is smaller than an area of the first color filter, and the method includes forming the first color filter, and forming the second color filter thereafter.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: November 5, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Suguru Akagawa, Yuki Hanamura
  • Publication number: 20190273122
    Abstract: An electro-optical device includes a first substrate including a plurality of light-emitting elements and a color filter provided corresponding to the plurality of light-emitting elements and a second substrate being a light-transmissive substrate and disposed facing the first substrate with an adhesive provided between the first substrate and the second substrate. An adhesive surface of the color filter of the first substrate is provided with protrusions and recesses in a stripe pattern.
    Type: Application
    Filed: February 28, 2019
    Publication date: September 5, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Masanori IWASAKI, Suguru AKAGAWA, Narumi ISHIBASHI, Takeshi KOSHIHARA
  • Patent number: 10403687
    Abstract: There is provided an electro-optical device including a light-emitting element, a sealing layer that covers the light-emitting element, a color filter layer that is formed on the sealing layer, and a convex portion that is provided between the sealing layer and the color filter layer and has a first surface in contact with the sealing layer and a second surface in contact with the color filter layer, in which the second surface is a curved surface.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: September 3, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Suguru Akagawa, Ryoichi Nozawa, Naotaka Kubota, Takefumi Fukagawa
  • Patent number: 10163986
    Abstract: There is provided an electro-optical device including a light-emitting element, a sealing layer that covers the light-emitting element, a first color filter transmits light in a first wavelength region, and a second color filter that is formed on the sealing layer and the first color filter and transmits light in a second wavelength region, in which the light in the first wavelength region has higher visibility than the light in the second wavelength region, and the first color filter is first formed on the sealing layer.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: December 25, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takefumi Fukagawa, Takeshi Koshihara, Naotaka Kubota, Suguru Akagawa
  • Patent number: 10164215
    Abstract: An electro-optic device includes a substrate that has a first surface and an end face crossing the first surface; a light emitting element that is disposed on the first surface; a planarization layer that covers the light emitting element; and a first inorganic sealing layer that is disposed on the planarization layer. An outer edge of the first inorganic sealing layer is disposed between an outer edge of the planarization layer and a first region where the light emitting element is disposed.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: December 25, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Suguru Akagawa, Takefumi Fukagawa
  • Patent number: 10090364
    Abstract: An organic EL device includes an organic light-emitting layer provided above a first substrate; a protective layer provided above the organic light-emitting layer; a color filter provided on the protective layer; and a second substrate adhered to the color filter via an adhesive, in which a colored layer includes a first colored layer, a second colored layer, and a third colored layer, the color filter includes a first region in which the first colored layer, the second colored layer, and the third colored layer are respectively arranged as single colors and a second region in which the first colored layer, the second colored layer, and the third colored layer are arranged in a layered manner, and a height difference-relieving layer is provided between the color filter and the adhesive.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: October 2, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Suguru Akagawa, Narumi Ishibashi, Naotaka Kubota
  • Publication number: 20180138245
    Abstract: There is provided an electro-optical device including a light-emitting element, a sealing layer that covers the light-emitting element, a color filter layer that is formed on the sealing layer, and a convex portion that is provided between the sealing layer and the color filter layer and has a first surface in contact with the sealing layer and a second surface in contact with the color filter layer, in which the second surface is a curved surface.
    Type: Application
    Filed: November 14, 2017
    Publication date: May 17, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Suguru AKAGAWA, Ryoichi NOZAWA, Naotaka KUBOTA, Takefumi FUKAGAWA
  • Publication number: 20180138244
    Abstract: There is provided an electro-optical device including a light-emitting element, a sealing layer that covers the light-emitting element, a first color filter transmits light in a first wavelength region, and a second color filter that is formed on the sealing layer and the first color filter and transmits light in a second wavelength region, in which the light in the first wavelength region has higher visibility than the light in the second wavelength region, and the first color filter is first formed on the sealing layer.
    Type: Application
    Filed: November 14, 2017
    Publication date: May 17, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takefumi FUKAGAWA, Takeshi KOSHIHARA, Naotaka KUBOTA, Suguru AKAGAWA
  • Patent number: 9755005
    Abstract: An organic EL device according to the present application includes a substrate, a plurality of organic EL elements arranged on the substrate, the plurality of organic EL elements including an organic light-emitting layer interposed between an anode and a cathode, a plurality of connection terminals disposed on the substrate, a sealing layer covering the plurality of organic EL elements such that the plurality of organic EL elements lie between the substrate and the sealing layer, and an organic layer formed above the sealing layer. The organic layer and the sealing layer have an opening portion that exposes at least one of the plurality of connection terminals.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: September 5, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hisatoshi Nakamura, Shinichi Iwata, Seiji Atsumi, Yuki Hanamura, Suguru Akagawa
  • Publication number: 20170236876
    Abstract: A manufacturing method of an organic light emitting device including a light emitting element that includes an organic light emitting layer, a sealing layer above the light emitting element, and a color filter layer above the sealing layer. The color filter layer includes a first color filter that transmits light of a first wavelength region and a second color filter that transmits light of a second wavelength region, an area of the second color filter is smaller than an area of the first color filter, and the method includes forming the first color filter, and forming the second color filter thereafter.
    Type: Application
    Filed: May 4, 2017
    Publication date: August 17, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Suguru AKAGAWA, Yuki HANAMURA
  • Patent number: 9620736
    Abstract: An organic EL device includes an element substrate above which an organic EL element is provided; a counter substrate arranged so as to face the element substrate; a sealing layer arranged between the organic EL element and the counter substrate, and having at least a first sealing layer made from an inorganic material, a planarized second sealing layer, and a third sealing layer formed from an inorganic material; and a filler arranged between the sealing layer and the counter substrate, in which the counter substrate is arranged in a region spaced by a predetermined gap from any end portion of the element substrate, the filler is arranged so as to protrude to the gap from between the element substrate and the counter substrate, and the end portion of the second sealing layer is covered by the filler.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: April 11, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Suguru Akagawa, Takeshi Koshihara
  • Publication number: 20170012084
    Abstract: An organic EL device according to the present application includes a substrate, a plurality of organic EL elements arranged on the substrate, the plurality of organic EL elements including an organic light-emitting layer interposed between an anode and a cathode, a plurality of connection terminals disposed on the substrate, a sealing layer covering the plurality of organic EL elements such that the plurality of organic EL elements lie between the substrate and the sealing layer, and an organic layer formed above the sealing layer. The organic layer and the sealing layer have an opening portion that exposes at least one of the plurality of connection terminals.
    Type: Application
    Filed: September 23, 2016
    Publication date: January 12, 2017
    Inventors: Hisatoshi NAKAMURA, Shinichi IWATA, Seiji ATSUMI, Yuki HANAMURA, Suguru AKAGAWA