Patents by Inventor Takefumi FUKAGAWA

Takefumi FUKAGAWA 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: 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
  • Publication number: 20200220108
    Abstract: An organic electroluminescence device according to the present disclosure includes a light-emitting layer containing a light-emitting material, a first reflective layer configured to reflect light generated in the light-emitting layer, a second reflective layer disposed on an opposite side of the light-emitting layer from the first reflective layer, having light reflectivity and light transmissivity, to cause light generated in the light-emitting layer to resonate between the second reflective layer and the first reflective layer, and a dielectric multilayer film disposed on an opposite side of the second reflective layer from the light-emitting layer to cause light emitted from the second reflective layer to resonate.
    Type: Application
    Filed: January 8, 2020
    Publication date: July 9, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Jun IROBE, Takefumi FUKAGAWA
  • 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
  • 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
  • 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: 9929205
    Abstract: The imaging device includes a sensor substrate, a light-blocking substrate, a light-collecting substrate, a sealing material, and a light-transmitting member. The light-transmitting member includes a light-transmitting base disposed to be in contact with either the sensor substrate or the light-blocking substrate, and a light-transmitting resin which is filled between the base and the sensor substrate or the light-blocking substrate. A void is formed in at least a part of a space between the sealing material and the light-transmitting member.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: March 27, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takefumi Fukagawa, Takashi Miyata, Satoshi Higuchi, Tatsuya Okamoto
  • Patent number: 9843022
    Abstract: An organic light emitting device has a substrate, an organic light emitting element disposed on the substrate, and a sealing layer sealing the organic light emitting element by covering the organic light emitting element. The sealing layer is a multilayer body in which a first sealing layer mainly containing an inorganic material, a buffer layer mainly containing a resin material, and a second sealing layer mainly containing silicon oxynitride are successively stacked from a side of the organic light emitting element. The first sealing layer has a heavy hydrogen diffusion coefficient of 1.0×10?21 m2/sec or more at 85° C. in a heavy hydrogen atmosphere.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: December 12, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hisatoshi Nakamura, Shinichi Iwata, Takefumi Fukagawa, Tsutomu Asakawa, Yuki Hanamura
  • Patent number: 9698389
    Abstract: A method of producing an organic EL device includes forming an organic EL element including a pixel electrode, a functional layer, and a counter electrode over a substrate, forming a cathode protective layer over the organic EL element, forming a cover layer over the cathode protective layer, forming an organic buffer layer over the cover layer, and forming a gas barrier layer over the organic buffer layer.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: July 4, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Tatsuya Okamoto, Takefumi Fukagawa
  • Publication number: 20170092896
    Abstract: An organic light emitting device has a substrate, an organic light emitting element disposed on the substrate, and a sealing layer sealing the organic light emitting element by covering the organic light emitting element. The sealing layer is a multilayer body in which a first sealing layer mainly containing an inorganic material, a buffer layer mainly containing a resin material, and a second sealing layer mainly containing silicon oxynitride are successively stacked from a side of the organic light emitting element. The first sealing layer has a heavy hydrogen diffusion coefficient of 1.0×10?21 m2/sec or more at 85° C. in a heavy hydrogen atmosphere.
    Type: Application
    Filed: July 22, 2016
    Publication date: March 30, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hisatoshi NAKAMURA, Shinichi IWATA, Takefumi FUKAGAWA, Tsutomu ASAKAWA, Yuki HANAMURA
  • Patent number: 9601713
    Abstract: An electro-optic device includes: a first substrate that includes a first surface; an optical element that is disposed in a first region on the first surface; a casing that is disposed to overlap with a part of the optical element along an outer periphery of the first region on the first surface and includes first and second end portions; a first resin layer that is disposed on an inside of the second end portion of the casing on the first surface and is installed to overlap with at least a part of the optical element; a second resin layer that is disposed on the first resin layer; and a second substrate that faces the first surface and is disposed on the second resin layer.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: March 21, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Takefumi Fukagawa
  • Publication number: 20160260936
    Abstract: A method of producing an organic EL device includes forming an organic EL element including a pixel electrode, a functional layer, and a counter electrode over a substrate, forming a cathode protective layer over the organic EL element, forming a cover layer over the cathode protective layer, forming an organic buffer layer over the cover layer, and forming a gas barrier layer over the organic buffer layer.
    Type: Application
    Filed: February 10, 2016
    Publication date: September 8, 2016
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Tatsuya OKAMOTO, Takefumi FUKAGAWA
  • Publication number: 20160020245
    Abstract: The imaging device includes a sensor substrate, a light-blocking substrate, a light-collecting substrate, a sealing material, and a light-transmitting member. The light-transmitting member includes a light-transmitting base disposed to be in contact with either the sensor substrate or the light-blocking substrate, and a light-transmitting resin which is filled between the base and the sensor substrate or the light-blocking substrate. A void is formed in at least a part of a space between the sealing material and the light-transmitting member.
    Type: Application
    Filed: September 28, 2015
    Publication date: January 21, 2016
    Inventors: Takefumi FUKAGAWA, Takashi MIYATA, Satoshi HIGUCHI, Tatsuya OKAMOTO
  • Patent number: 9182273
    Abstract: The imaging device includes a sensor substrate, a light-blocking substrate, a light-collecting substrate, a sealing material, and a light-transmitting member. The light-transmitting member includes a light-transmitting base disposed to be in contact with either the sensor substrate or the light-blocking substrate, and a light-transmitting resin which is filled between the base and the sensor substrate or the light-blocking substrate. A void is formed in at least a part of a space between the sealing material and the light-transmitting member.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: November 10, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takefumi Fukagawa, Takashi Miyata, Satoshi Higuchi, Tatsuya Okamoto
  • Patent number: 9166193
    Abstract: Disclosed is an organic EL device as an light emitting device according to this application example includes a base material as a substrate, and an organic EL element as a plurality of light emitting elements having a light emitting functional layer as a functional layer in which an organic light emitting layer is included between a pixel electrode as an anode and an opposed electrode as a cathode and a sealing layer sealing the plurality of organic EL elements which are formed on the base material, and the opposed electrode is formed over the plurality of organic EL elements as a common cathode, and the sealing layer is formed so as to cover the common cathode in the same region where the common cathode is formed or inwards from the region.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: October 20, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Suguru Akagawa, Takefumi Fukagawa, Hisatoshi Nakamura
  • Publication number: 20140367661
    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: Application
    Filed: June 6, 2014
    Publication date: December 18, 2014
    Inventors: Suguru AKAGAWA, Takefumi FUKAGAWA
  • Publication number: 20140339523
    Abstract: An electro-optic device includes: a first substrate that includes a first surface; an optical element that is disposed in a first region on the first surface; a casing that is disposed to overlap with a part of the optical element along an outer periphery of the first region on the first surface and includes first and second end portions; a first resin layer that is disposed on an inside of the second end portion of the casing on the first surface and is installed to overlap with at least a part of the optical element; a second resin layer that is disposed on the first resin layer; and a second substrate that faces the first surface and is disposed on the second resin layer.
    Type: Application
    Filed: May 13, 2014
    Publication date: November 20, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takefumi FUKAGAWA
  • Publication number: 20140061431
    Abstract: The imaging device includes a sensor substrate, a light-blocking substrate, a light-collecting substrate, a sealing material, and a light-transmitting member. The light-transmitting member includes a light-transmitting base disposed to be in contact with either the sensor substrate or the light-blocking substrate, and a light-transmitting resin which is filled between the base and the sensor substrate or the light-blocking substrate. A void is formed in at least a part of a space between the sealing material and the light-transmitting member.
    Type: Application
    Filed: August 20, 2013
    Publication date: March 6, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takefumi FUKAGAWA, Takashi MIYATA, Satoshi HIGUCHI, Tatsuya OKAMOTO