Patents by Inventor Satoshi SHICHIJO

Satoshi SHICHIJO 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: 20250212568
    Abstract: A light emitting device includes a wavelength converting member, a light emitting part, and a light adjusting member. The wavelength converting member includes an upper surface, a lower surface, a first lateral surface located between the upper surface and the lower surface, and a second lateral surface located between the upper surface and the lower surface, and located opposite to the first lateral surface. The light emitting part includes a light emitting layer, and is disposed below the lower surface of the wavelength converting member and in a region closer to the first lateral surface than to the second lateral surface. The light adjusting member is disposed on the upper surface of the wavelength converting member and in a region closer to the second lateral surface than to the first lateral surface without overlapping with the light emitting layer of the light emitting part in a top view.
    Type: Application
    Filed: December 17, 2024
    Publication date: June 26, 2025
    Inventors: Satoshi SHICHIJO, Tatsuya HAYASHI, Yusuke HAYASHI
  • Patent number: 12264791
    Abstract: A light-emitting device includes a light-emitting element, a light-transmissive member, and a first light adjustment member. The light-transmissive member has a first upper surface, a second upper surface, a lower surface facing a first surface of a support substrate of the light-emitting element, a first lateral surface contiguous with the first upper surface and the second upper surface, a second lateral surface contiguous with the second upper surface and the lower surface, and a third lateral surface contiguous with the first upper surface and the lower surface. The first light adjustment member exposes the first upper surface of the light-transmissive member and covers the second upper surface and the first lateral surface of the light-transmissive member. The light-transmissive member and the first light adjustment member collectively define a rectangular cross-sectional shape.
    Type: Grant
    Filed: April 2, 2024
    Date of Patent: April 1, 2025
    Assignee: NICHIA CORPORATION
    Inventors: Satoshi Shichijo, Tatsuya Hayashi, Yusuke Hayashi, Masahiro Okazaki
  • Publication number: 20240395982
    Abstract: A light-emitting device includes a light-emitting element configured to emit a first light, a wavelength conversion member disposed on an upper surface of the light-emitting element and configured to emit, by excitation by the first light, a second light having a peak wavelength longer than a peak wavelength of the first light, and a covering member disposed around the light-emitting element and the wavelength conversion member and containing a light-reflective material and a phosphor. The phosphor is configured to emit, by excitation by the first light, a third light having a peak wavelength longer than the peak wavelength of the second light. The content of the phosphor above the upper surface of the light-emitting element is less than the content of the phosphor below the upper surface of the light-emitting element.
    Type: Application
    Filed: May 9, 2024
    Publication date: November 28, 2024
    Inventors: Yusuke HAYASHI, Satoshi SHICHIJO, Hiroki FUKUTA
  • Patent number: 12078343
    Abstract: A light emitting device includes: a substrate; a light emitting element disposed on the substrate; a first wavelength conversion member disposed on the light emitting element and having a lower surface bonded to the light emitting element, an upper surface opposite the lower surface, and a lateral surface that meets the upper surface; a first light reflecting member disposed on an upper surface of the substrate and covering lateral surfaces of the light emitting element; and a second wavelength conversion member disposed on the first light reflecting member, on the upper surface of the substrate, and on the lateral surface of the first wavelength conversion member without covering the upper surface of the first wavelength conversion member.
    Type: Grant
    Filed: August 17, 2023
    Date of Patent: September 3, 2024
    Assignee: NICHIA CORPORATION
    Inventors: Yusuke Hayashi, Satoshi Shichijo, Hiroki Fukuta
  • Publication number: 20240247769
    Abstract: A light-emitting device includes a light-emitting element, a light-transmissive member, and a first light adjustment member. The light-transmissive member has a first upper surface, a second upper surface, a lower surface facing a first surface of a support substrate of the light-emitting element, a first lateral surface contiguous with the first upper surface and the second upper surface, a second lateral surface contiguous with the second upper surface and the lower surface, and a third lateral surface contiguous with the first upper surface and the lower surface. The first light adjustment member exposes the first upper surface of the light-transmissive member and covers the second upper surface and the first lateral surface of the light-transmissive member. The light-transmissive member and the first light adjustment member collectively define a rectangular cross-sectional shape.
    Type: Application
    Filed: April 2, 2024
    Publication date: July 25, 2024
    Inventors: Satoshi SHICHIJO, Tatsuya HAYASHI, Yusuke HAYASHI, Masahiro OKAZAKI
  • Patent number: 12013089
    Abstract: A light-emitting device includes a light-emitting element, a light-transmissive member, and a light adjustment member. The light adjustment member exposes a first upper surface and covers a second upper surface and a first lateral surface of the light-transmissive member. The light-transmissive member has a thickness from a lower surface to the first upper surface larger than a thickness from the lower surface to the second upper surface. In a plan view, first and second light-emitting regions have the first and second upper surfaces of the light-transmissive member, respectively, and an area of the second light-emitting region is in a range from 35% to 95% of an area of a light-emitting region. A boundary between the first and second light-emitting regions includes first and second points on a perimeter of a light-emitting region, and a straight line connecting the first and second points extends across the light-emitting region.
    Type: Grant
    Filed: July 14, 2023
    Date of Patent: June 18, 2024
    Assignee: NICHIA CORPORATION
    Inventors: Satoshi Shichijo, Tatsuya Hayashi, Yusuke Hayashi, Masahiro Okazaki
  • Publication number: 20240027034
    Abstract: A light-emitting device includes a light-emitting element, a light-transmissive member, and a light adjustment member. The light adjustment member exposes a first upper surface and covers a second upper surface and a first lateral surface of the light-transmissive member. The light-transmissive member has a thickness from a lower surface to the first upper surface larger than a thickness from the lower surface to the second upper surface. In a plan view, first and second light-emitting regions have the first and second upper surfaces of the light-transmissive member, respectively, and an area of the second light-emitting region is in a range from 35% to 95% of an area of a light-emitting region. A boundary between the first and second light-emitting regions includes first and second points on a perimeter of a light-emitting region, and a straight line connecting the first and second points extends across the light-emitting region.
    Type: Application
    Filed: July 14, 2023
    Publication date: January 25, 2024
    Inventors: Satoshi SHICHIJO, Tatsuya HAYASHI, Yusuke HAYASHI, Masahiro OKAZAKI
  • Publication number: 20230392769
    Abstract: A light emitting device includes: a substrate; a light emitting element disposed on the substrate; a first wavelength conversion member disposed on the light emitting element and having a lower surface bonded to the light emitting element, an upper surface opposite the lower surface, and a lateral surface that meets the upper surface; a first light reflecting member disposed on an upper surface of the substrate and covering lateral surfaces of the light emitting element; and a second wavelength conversion member disposed on the first light reflecting member, on the upper surface of the substrate, and on the lateral surface of the first wavelength conversion member without covering the upper surface of the first wavelength conversion member.
    Type: Application
    Filed: August 17, 2023
    Publication date: December 7, 2023
    Applicant: NICHIA CORPORATION
    Inventors: Yusuke HAYASHI, Satoshi SHICHIJO, Hiroki FUKUTA
  • Patent number: 11767967
    Abstract: A light emitting device includes: a light emitting element configured to emit first light; a first wavelength conversion member disposed on the light emitting element and having a lower surface bonded to the light emitting element, an upper surface, and a lateral surface that meets the upper surface, the first wavelength conversion member being configured to emit second light when excited by the first light; a second wavelength conversion member covering the lateral surface of the first wavelength conversion member without covering the upper surface of the first wavelength conversion member, the second wavelength conversion member having an oblique surface extending outward from the lateral surface of the first wavelength conversion member, the second wavelength conversion member being configured to emit third light when excited by at least one of the first light and the second light; and a first light reflecting member covering the oblique surface.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: September 26, 2023
    Assignee: NICHIA CORPORATION
    Inventors: Yusuke Hayashi, Satoshi Shichijo, Hiroki Fukuta
  • Patent number: 11735688
    Abstract: A method of manufacturing a light emitting device includes: bonding a light emitting element and a light transmissive member by a surface activated bonding method, which includes: activating a first bonding surface of the light emitting element to which the light transmissive member is to be bonded, by irradiating at least the first bonding surface with an ion beam, activating a second bonding surface of the light transmissive member to which the light emitting element is to be bonded, by irradiating at least the second bonding surface with an ion beam, and joining the light emitting element and the light transmissive member by bringing the activated first bonding surface and the activated second bonding surface into contact.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: August 22, 2023
    Assignee: NICHIA CORPORATION
    Inventors: Satoshi Shichijo, Harunobu Sagawa
  • Publication number: 20230204192
    Abstract: A light emitting device includes: a light emitting element configured to emit first light; a first wavelength conversion member disposed on the light emitting element and having a lower surface bonded to the light emitting element, an upper surface, and a lateral surface that meets the upper surface, the first wavelength conversion member being configured to emit second light when excited by the first light; a second wavelength conversion member covering the lateral surface of the first wavelength conversion member without covering the upper surface of the first wavelength conversion member, the second wavelength conversion member having an oblique surface extending outward from the lateral surface of the first wavelength conversion member, the second wavelength conversion member being configured to emit third light when excited by at least one of the first light and the second light; and a first light reflecting member covering the oblique surface.
    Type: Application
    Filed: December 19, 2022
    Publication date: June 29, 2023
    Applicant: NICHIA CORPORATION
    Inventors: Yusuke HAYASHI, Satoshi SHICHIJO, Hiroki FUKUTA
  • Patent number: 11417811
    Abstract: A light emitting element includes a semiconductor stacked body, an insulating film, first and second electrodes, a second external connection portion, and first external connection portions. The first semiconductor layer is exposed at a plurality of exposed portions disposed in a plurality of rows in plan view. The first external connection portions include at least one smaller-size first external connection portion disposed between adjacent ones of the rows other than the outermost one of the rows, and at least one larger-size first external connection portion extending from the end region, in which a spacing between a first outer edge of a second semiconductor layer and the exposed portions in the outermost one of the rows is narrower than a spacing between the exposed portions in adjacent ones of the rows, to at least a position between the outermost one of the rows and an adjacent one of the rows.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: August 16, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Koichi Takenaga, Takanori Fukumori, Satoshi Shichijo, Hiroki Fukuta, Kunihito Sugimoto
  • Publication number: 20210242365
    Abstract: A method of manufacturing a light emitting device includes: bonding a light emitting element and a light transmissive member by a surface activated bonding method, which includes: activating a first bonding surface of the light emitting element to which the light transmissive member is to be bonded, by irradiating at least the first bonding surface with an ion beam, activating a second bonding surface of the light transmissive member to which the light emitting element is to be bonded, by irradiating at least the second bonding surface with an ion beam, and joining the light emitting element and the light transmissive member by bringing the activated first bonding surface and the activated second bonding surface into contact.
    Type: Application
    Filed: April 19, 2021
    Publication date: August 5, 2021
    Applicant: NICHIA CORPORATION
    Inventors: Satoshi SHICHIJO, Harunobu SAGAWA
  • Patent number: 11024770
    Abstract: A light emitting element includes a semiconductor layered body, an insulating film, first and second electrodes, and first and second external connection parts. The first semiconductor layer is exposed from the light emitting layer and the second semiconductor layer at exposed portions arranged in columns each extending in a first direction. The insulating film defines openings respectively located above the exposed portions. The first electrode is connected to the first semiconductor layer through the openings and covers a part of the second semiconductor layer via the insulating film. The first external connection part is connected to the first electrode and spaced apart from the exposed portions in the plan view. The first external connection part has a shape elongated in the first direction between adjacent ones of the columns of the exposed portions. The second external connection part is connected to the second semiconductor layer via the second electrode.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: June 1, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Satoshi Shichijo, Hiroki Fukuta, Kunihito Sugimoto, Yasuhiro Miki, Koichi Takenaga
  • Patent number: 11011671
    Abstract: A light emitting device includes: a light emitting element; and a light transmissive member bonded to an emission surface of the light emitting element; wherein the light emitting element and the light transmissive member are bonded via a bonding portion that comprises a portion of the light emitting element and a portion of the light transmissive member; wherein the bonding portion contains at least one rare gas element selected from the group consisting of He, Ne, Ar, and Kr; and wherein a peak of a rare gas element distribution is positioned away from the emission surface in at least one of the light emitting element and the light transmissive member.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: May 18, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Satoshi Shichijo, Harunobu Sagawa
  • Patent number: 10873008
    Abstract: A light emitting device including: a light emitting element, a phosphor plate, and a light guiding part. The lower face of the light emitting element has a rectangular shape. The light guiding part covers lateral faces of the light emitting element and the lower face of the phosphor plate that is exposed from the light emitting element. The light guiding part has one or more lateral faces having at least one of structures below: a height at both ends being different from the height at a central area; outer lateral faces being parallel to the lateral faces of the light emitting element.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: December 22, 2020
    Assignee: NICHIA CORPORATION
    Inventors: Shusaku Bando, Takanobu Sogai, Satoshi Shichijo
  • Publication number: 20200212278
    Abstract: A light emitting element includes a semiconductor stacked body, an insulating film, first and second electrodes, a second external connection portion, and first external connection portions. The first semiconductor layer is exposed at a plurality of exposed portions disposed in a plurality of rows in plan view. The first external connection portions include at least one smaller-size first external connection portion disposed between adjacent ones of the rows other than the outermost one of the rows, and at least one larger-size first external connection portion extending from the end region, in which a spacing between a first outer edge of a second semiconductor layer and the exposed portions in the outermost one of the rows is narrower than a spacing between the exposed portions in adjacent ones of the rows, to at least a position between the outermost one of the rows and an adjacent one of the rows.
    Type: Application
    Filed: December 17, 2019
    Publication date: July 2, 2020
    Inventors: Koichi TAKENAGA, Takanori FUKUMORI, Satoshi SHICHIJO, Hiroki FUKUTA, Kunihito SUGIMOTO
  • Patent number: 10651336
    Abstract: A light-emitting device includes: a mounting base; a plurality of light-emitting elements mounted on or above the mounting base; a plurality of light-transmissive members respectively disposed on upper surfaces of the plurality of light-emitting elements; a plurality of light guide members respectively covering lateral surfaces of the plurality of light-emitting elements; a plurality of antireflective films respectively disposed on upper surfaces of the plurality of the light-transmissive members; and a covering member covering lateral surfaces of the plurality of antireflective films.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: May 12, 2020
    Assignee: NICHIA CORPORATION
    Inventors: Takeshi Kususe, Satoshi Shichijo, Kunihito Sugimoto
  • Publication number: 20200020824
    Abstract: A light-emitting device includes: a mounting base; a plurality of light-emitting elements mounted on or above the mounting base; a plurality of light-transmissive members respectively disposed on upper surfaces of the plurality of light-emitting elements; a plurality of light guide members respectively covering lateral surfaces of the plurality of light-emitting elements; a plurality of antireflective films respectively disposed on upper surfaces of the plurality of the light-transmissive members; and a covering member covering lateral surfaces of the plurality of antireflective films.
    Type: Application
    Filed: September 23, 2019
    Publication date: January 16, 2020
    Applicant: NICHIA CORPORATION
    Inventors: Takeshi KUSUSE, Satoshi SHICHIJO, Kunihito SUGIMOTO
  • Publication number: 20190386171
    Abstract: A light emitting device includes: a light emitting element; and a light transmissive member bonded to an emission surface of the light emitting element; wherein the light emitting element and the light transmissive member are bonded via a bonding portion that comprises a portion of the light emitting element and a portion of the light transmissive member; wherein the bonding portion contains at least one rare gas element selected from the group consisting of He, Ne, Ar, and Kr; and wherein a peak of a rare gas element distribution is positioned away from the emission surface in at least one of the light emitting element and the light transmissive member.
    Type: Application
    Filed: June 13, 2019
    Publication date: December 19, 2019
    Applicant: NICHIA CORPORATION
    Inventors: Satoshi SHICHIJO, Harunobu SAGAWA