Patents by Inventor Hirosuke HAYASHI

Hirosuke HAYASHI 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: 20230387361
    Abstract: A method of manufacturing a light emitting device includes: providing a light emitting structure including a light emitting element having a top surface and lateral surfaces, a wavelength conversion member having a top surface, a bottom surface, and lateral surfaces, with the bottom surface of the wavelength conversion member facing the top surface of the light emitting element, and a reflecting member surrounding the lateral surfaces of the light emitting element and the lateral surfaces of the wavelength conversion member, the reflecting member having a top surface; and supplying a covering member to cover the top surface of the wavelength conversion member and the top surface of the reflecting member, the covering member containing at least one of a pigment and a dye so that a body color of the covering member is the same or a similar color as a body color of the wavelength conversion member.
    Type: Application
    Filed: August 8, 2023
    Publication date: November 30, 2023
    Inventor: Hirosuke HAYASHI
  • Patent number: 11764338
    Abstract: A light emitting device includes first and second light emitting elements, first and second wavelength conversion members, a reflecting member surrounding lateral surfaces of the first and second light emitting elements, and the lateral surfaces of the first and second wavelength conversion members, and a covering member continuously covering at least a top surface of the first wavelength conversion member, a top surface of the reflecting member disposed between the first and second wavelength conversion members, and a top surface of the second wavelength conversion member. The covering member contains at least one of a pigment and a dye so that a body color of the covering member is the same or a similar color as a body color of the wavelength conversion member.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: September 19, 2023
    Assignee: NICHIA CORPORATION
    Inventor: Hirosuke Hayashi
  • Publication number: 20220328735
    Abstract: A light emitting device includes first and second light emitting elements, first and second wavelength conversion members, a reflecting member surrounding lateral surfaces of the first and second light emitting elements, and the lateral surfaces of the first and second wavelength conversion members, and a covering member continuously covering at least a top surface of the first wavelength conversion member, a top surface of the reflecting member disposed between the first and second wavelength conversion members, and a top surface of the second wavelength conversion member. The covering member contains at least one of a pigment and a dye so that a body color of the covering member is the same or a similar color as a body color of the wavelength conversion member.
    Type: Application
    Filed: June 28, 2022
    Publication date: October 13, 2022
    Inventor: Hirosuke HAYASHI
  • Patent number: 11404615
    Abstract: A light emitting device includes a light emitting element, a wavelength conversion member, a reflecting member and a covering member. The light emitting element has a top surface and lateral surfaces. The wavelength conversion member has a top surface, a bottom surface, and lateral surfaces, with the bottom surface of the wavelength conversion member facing the top surface of the light emitting element. The reflecting member surrounds the lateral surfaces of the light emitting element and the lateral surfaces of the wavelength conversion member. The reflecting member has a top surface. The covering member covers the top surface of the wavelength conversion member and the top surface of the reflecting member. The covering member contains a pigment or a dye so that a body color of the covering member is the same or a similar color as a body color of the wavelength conversion member.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: August 2, 2022
    Assignee: NICHIA CORPORATION
    Inventor: Hirosuke Hayashi
  • Patent number: 10998472
    Abstract: A light emitting device includes: a light emitting element having an emission face and lateral faces; a wavelength conversion member having a first face and a second face which opposes the first face, the wavelength conversion member being disposed on the emission face of the light emitting element so that the first face faces the emission face; a reflecting member disposed on lateral face sides of the light emitting element and covering at least a portion of outer lateral faces of the wavelength conversion member, and a cover member disposed on an upper face of the reflecting member while being adjacent to peripheral ends of the wavelength conversion member. The cover member contains at least one of a reflecting substance and a coloring substance. A body color of the wavelength conversion member and a body color of the cover member are the same color or similar colors.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: May 4, 2021
    Assignee: NICHIA CORPORATION
    Inventor: Hirosuke Hayashi
  • Patent number: 10608155
    Abstract: A method for manufacturing a light emitting device includes: placing a light-transmissive member, which includes first and second regions, above a light emitting element so that the first region of the light-transmissive member is positioned directly above a top surface of the light emitting element, and a lateral surface of the light emitting element and a bottom surface of the second region of the light-transmissive member are covered by a light guide member; and covering an outer surface of the light guide member with a light reflective member. The light-transmissive member contains a fluorescent substance and a light scattering material, a concentration of the fluorescent substance in the light-transmissive member is higher in the first region than in the second region, and a concentration of the light scattering material in the light-transmissive member is higher in the second region than in the first region.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: March 31, 2020
    Assignee: NICHIA CORPORATION
    Inventor: Hirosuke Hayashi
  • Publication number: 20190326497
    Abstract: A method for manufacturing a light emitting device includes: placing a light-transmissive member, which includes first and second regions, above a light emitting element so that the first region of the light-transmissive member is positioned directly above a top surface of the light emitting element, and a lateral surface of the light emitting element and a bottom surface of the second region of the light-transmissive member are covered by a light guide member; and covering an outer surface of the light guide member with a light reflective member. The light-transmissive member contains a fluorescent substance and a light scattering material, a concentration of the fluorescent substance in the light-transmissive member is higher in the first region than in the second region, and a concentration of the light scattering material in the light-transmissive member is higher in the second region than in the first region.
    Type: Application
    Filed: June 28, 2019
    Publication date: October 24, 2019
    Inventor: Hirosuke HAYASHI
  • Patent number: 10388835
    Abstract: A light emitting device includes a light emitting element, a transmissive member, and a light reflective member. The transmissive member is arranged on the light emitting element, and has a wavelength conversion member and a film. The film constitutes at least a part of an outermost surface of a side surface of the transmissive member. A surface free energy of a base material of the film is lower than a surface free energy of a base material of the wavelength conversion layer. The light reflective member encloses a side surface of the light emitting element and the side surface of the transmissive member while a top surface of the transmissive member is exposed from the light reflective member.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: August 20, 2019
    Assignee: NICHIA CORPORATION
    Inventor: Hirosuke Hayashi
  • Patent number: 10381538
    Abstract: A light emitting device includes a light emitting element, a light-transmissive member, a light guide member and a light reflective member. The light-transmissive member includes a first region directly above a top surface of the light emitting element, and a second region at a lateral side of the first region. The light guide member covers a lateral surface of the light emitting element and a bottom surface of the second region of the light-transmissive member. The light reflective member covers an outer surface of the light guide member. The light-transmissive member contains a fluorescent substance and a light scattering material that is not a fluorescent substance. A concentration of the fluorescent substance in the light-transmissive member is higher in the first region than in the second region. A concentration of the light scattering material in the light-transmissive member is higher in the second region than in the first region.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: August 13, 2019
    Assignee: NICHIA CORPORATION
    Inventor: Hirosuke Hayashi
  • Publication number: 20190221727
    Abstract: A light emitting device includes a light emitting element, a wavelength conversion member, a reflecting member and a covering member. The light emitting element has a top surface and lateral surfaces. The wavelength conversion member has a top surface, a bottom surface, and lateral surfaces, with the bottom surface of the wavelength conversion member facing the top surface of the light emitting element. The reflecting member surrounds the lateral surfaces of the light emitting element and the lateral surfaces of the wavelength conversion member. The reflecting member has a top surface. The covering member covers the top surface of the wavelength conversion member and the top surface of the reflecting member. The covering member contains a pigment or a dye so that a body color of the covering member is the same or a similar color as a body color of the wavelength conversion member.
    Type: Application
    Filed: January 14, 2019
    Publication date: July 18, 2019
    Inventor: Hirosuke HAYASHI
  • Publication number: 20190198729
    Abstract: A light emitting device includes: a light emitting element having an emission face and lateral faces; a wavelength conversion member having a first face and a second face which opposes the first face, the wavelength conversion member being disposed on the emission face of the light emitting element so that the first face faces the emission face; a reflecting member disposed on lateral face sides of the light emitting element and covering at least a portion of outer lateral faces of the wavelength conversion member, and a cover member disposed on an upper face of the reflecting member while being adjacent to peripheral ends of the wavelength conversion member. The cover member contains at least one of a reflecting substance and a coloring substance. A body color of the wavelength conversion member and a body color of the cover member are the same color or similar colors.
    Type: Application
    Filed: December 21, 2018
    Publication date: June 27, 2019
    Applicant: NICHIA CORPORATION
    Inventor: Hirosuke HAYASHI
  • Publication number: 20180269361
    Abstract: A light emitting device includes a light emitting element, a transmissive member, and a light reflective member. The transmissive member is arranged on the light emitting element, and has a wavelength conversion member and a film. The film constitutes at least a part of an outermost surface of a side surface of the transmissive member. A surface free energy of a base material of the film is lower than a surface free energy of a base material of the wavelength conversion layer. The light reflective member encloses a side surface of the light emitting element and the side surface of the transmissive member while a top surface of the transmissive member is exposed from the light reflective member.
    Type: Application
    Filed: March 9, 2018
    Publication date: September 20, 2018
    Inventor: Hirosuke HAYASHI
  • Publication number: 20180212128
    Abstract: A light emitting device includes a light emitting element, a light-transmissive member, a light guide member and a light reflective member. The light-transmissive member includes a first region directly above a top surface of the light emitting element, and a second region at a lateral side of the first region. The light guide member covers a lateral surface of the light emitting element and a bottom surface of the second region of the light-transmissive member. The light reflective member covers an outer surface of the light guide member. The light-transmissive member contains a fluorescent substance and a light scattering material that is not a fluorescent substance. A concentration of the fluorescent substance in the light-transmissive member is higher in the first region than in the second region. A concentration of the light scattering material in the light-transmissive member is higher in the second region than in the first region.
    Type: Application
    Filed: January 22, 2018
    Publication date: July 26, 2018
    Inventor: Hirosuke HAYASHI