Patents by Inventor Masahiko Sano

Masahiko Sano 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: 12145349
    Abstract: A light emitting device can further improve light extraction efficiency. A method of manufacturing such a light emitting device can also prove advantageous. The light emitting device includes a light emitting element, a light-transmissive member which is disposed on a light extracting surface side of the light emitting element, and a reflecting layer disposed on an element bonding surface of the light transmissive member where the light emitting element is disposed and adjacent to the light emitting element. The light-transmissive member, in a plan view, has a planar dimension greater than the light extracting surface of the light emitting element.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: November 19, 2024
    Assignee: NICHIA CORPORATION
    Inventors: Daisuke Sanga, Masatsugu Ichikawa, Shunsuke Minato, Toru Takasone, Masahiko Sano
  • Publication number: 20240363795
    Abstract: A semiconductor optical element includes a first indirect transition type semiconductor portion including a first conductivity type impurity at a first concentration, a second indirect transition type semiconductor portion including the first conductivity type impurity at a second concentration, a third indirect transition type semiconductor portion including a second conductivity type impurity at a third concentration, a fourth indirect transition type semiconductor portion including the second conductivity type impurity at a fourth concentration, and a fifth indirect transition type semiconductor portion including the second conductivity type impurity at a fifth concentration, in this order. The third indirect transition type semiconductor portion and the fourth indirect transition type semiconductor portion are in contact with each other. The first concentration is higher than the second concentration. The third concentration is higher than the fourth concentration.
    Type: Application
    Filed: April 24, 2024
    Publication date: October 31, 2024
    Applicant: NICHIA CORPORATION
    Inventor: Masahiko SANO
  • Publication number: 20230343909
    Abstract: A light emitting apparatus includes: a mount substrate; one or more light emitting devices located above the mount substrate; a light conversion member located above the one or more light emitting devices; and a covering member that contains a light reflective material and covers the one or more light emitting devices. The light conversion member includes: a light emission surface facing upward, a lateral surface facing laterally, and a light receiving surface facing downward. The covering member covers the lateral surface of the light conversion member, and is interposed between the mount substrate and the one or more light emitting devices.
    Type: Application
    Filed: June 29, 2023
    Publication date: October 26, 2023
    Applicant: NICHIA CORPORATION
    Inventors: Shunsuke MINATO, Masahiko SANO
  • Publication number: 20230268471
    Abstract: A light emitting device including a first light emitting element and an optical member disposed over the first light emitting element. The optical member includes a light transmissive member and a ceramic component. The light transmissive member has a first upper surface, a second upper surface, and a lower surface opposing to the first upper surface and a second upper surface. The ceramic component is disposed on the second upper surface of the light transmissive member. The light transmissive member and the ceramic component each has a portion that overlaps with the first light emitting element when viewed in plan view.
    Type: Application
    Filed: April 26, 2023
    Publication date: August 24, 2023
    Applicant: NICHIA CORPORATION
    Inventors: Masakatsu TOMONARI, Masahiko SANO
  • Patent number: 11735699
    Abstract: A light emitting apparatus includes: a mount substrate; at least one light emitting device mounted on the mount substrate; a light transparent member, wherein a lower surface of the light transparent member is attached to an upper surface of the at least one light emitting device via at least one adhesive material layer, wherein the light transparent member has a plate shape and is positioned to receive incident light emitted from the light emitting devices, and wherein a lateral surface of the light transparent member is located laterally inward of a lateral surface of the at least one light emitting device; and a covering member that contains a light reflective material and covers at least the lateral surface of the light transparent member.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: August 22, 2023
    Assignee: NICHIA CORPORATION
    Inventors: Shunsuke Minato, Masahiko Sano
  • Patent number: 11670746
    Abstract: A light emitting device including a mounting board, one or more light emitting elements, a light transmissive member, and a light reflective member. The light emitting element(s) are mounted on the mounting board, and each include an upper surface. The light transmissive member is bonded to the upper surface of each of the light emitting element(s). The light transmissive member has an upper surface and a lower surface, and allows light from the light emitting element(s) to be incident on the lower surface of the light transmissive member and to be output from the upper surface of the light transmissive member. The light reflective member covers surfaces of the light transmissive member and lateral surfaces of the light emitting element(s) and exposes the upper surface of the light transmissive member. At least a first portion of the mounting board is exposed from the light reflective member in a plan view.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: June 6, 2023
    Assignee: NICHIA CORPORATION
    Inventors: Masakatsu Tomonari, Masahiko Sano
  • Patent number: 11640957
    Abstract: A light emitting module includes a substrate, a light reflective resin layer, wiring electrodes and a light emitting element. The light reflective resin layer is arranged on the substrate. The wiring electrodes are arranged over the substrate with the light reflective resin layer being interposed between the substrate and the wiring electrodes. The light emitting element has an electrode formation surface including a positive and negative pair of element electrodes, and a light emitting surface on a side opposite to the electrode formation surface. The light emitting element is arranged on top surfaces of the wiring electrodes with the element electrodes facing the top surfaces of the wiring electrodes.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: May 2, 2023
    Assignee: NICHIA CORPORATION
    Inventors: So Sakamaki, Yasunori Nagahama, Masahiko Sano, Katsuyoshi Kadan
  • Patent number: 11585494
    Abstract: A fluorescent module includes a fluorescent member including a phosphor-containing layer, and a light reflecting layer disposed on the phosphor-containing layer. The phosphor-containing layer contains a YAG phosphor and a Ga-YAG phosphor within the same layer, the Ga-YAG phosphor being a phosphor in which a portion of the aluminum constituting the YAG phosphor is substituted with gallium. A volumetric ratio of the Ga-YAG phosphor to the entirety of the YAG phosphor and the Ga-YAG phosphor is in a range of 19.0% to 80%.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: February 21, 2023
    Assignee: NICHIA CORPORATION
    Inventors: Takafumi Sugiyama, Toshiyuki Hirai, Masahiko Sano, Toru Takasone
  • Patent number: 11410975
    Abstract: A method of manufacturing a display device 1 includes: providing a substrate including at least one sub-pixel defined therein and a first wiring disposed for the sub-pixel, and the light-emitting element that includes a first electrode disposed on a lower surface and a second electrode disposed on at least two lateral surfaces intersecting with each other; mounting the light-emitting element on the substrate and electrically connecting the first electrode to the first wiring; forming a resin member covering the at least one light-emitting element, on the substrate, exposing a portion of the second electrode from an upper surface of the resin member by removing an upper portion of the resin member; and forming a second wiring with a mesh shape on the resin member such that a portion of the second wiring is disposed on the light-emitting element to electrically connect the second wiring to the second electrode.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: August 9, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Kinya Ichikawa, Katsuyoshi Kadan, Masahiko Sano, Ryohei Hirose, Hiroshi Yoneda
  • Patent number: 11362246
    Abstract: A method of manufacturing a display device 1 includes: providing a substrate including sub-pixel defined therein and a first wiring disposed for the sub-pixel, and light-emitting element having a lower surface and a lateral surface and including a first electrode disposed on the lower surface, and a second electrode disposed on the lateral surface; mounting the light-emitting element and electrically connecting the first electrode to the first wiring; forming a resin member on the substrate and covering the light-emitting element; exposing an upper portion of the light-emitting element from an upper surface of the resin member such that the second electrode is partially exposed by removing an upper portion of the resin member; and forming a second wiring on the upper surface of the resin member excluding a portion of the light-emitting element exposed from the resin member and electrically connecting the second wiring to the second electrode.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: June 14, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Kinya Ichikawa, Katsuyoshi Kadan, Masahiko Sano, Ryohei Hirose, Hiroshi Yoneda
  • Publication number: 20220140212
    Abstract: A light emitting apparatus includes: a mount substrate; at least one light emitting device mounted on the mount substrate; a light transparent member, wherein a lower surface of the light transparent member is attached to an upper surface of the at least one light emitting device via at least one adhesive material layer, wherein the light transparent member has a plate shape and is positioned to receive incident light emitted from the light emitting devices, and wherein a lateral surface of the light transparent member is located laterally inward of a lateral surface of the at least one light emitting device; and a covering member that contains a light reflective material and covers at least the lateral surface of the light transparent member.
    Type: Application
    Filed: January 12, 2022
    Publication date: May 5, 2022
    Applicant: NICHIA CORPORATION
    Inventors: Shunsuke MINATO, Masahiko SANO
  • Patent number: 11257996
    Abstract: A light emitting apparatus includes: a mount substrate; a first light emitting device mounted on the mount substrate; a light transparent member, wherein a lower surface of the light transparent member is attached to an upper surface of the first light emitting device via an adhesive material, wherein the light transparent member has a plate shape and is positioned to receive incident light emitted from the first light emitting device, and wherein a first lateral surface of the light transparent member is located laterally inward of a lateral surface of the first light emitting device; and a covering member that contains a light reflective material and covers at least the lateral surface of the light transparent member.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: February 22, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Shunsuke Minato, Masahiko Sano
  • Publication number: 20210381662
    Abstract: A fluorescent module includes a fluorescent member including a phosphor-containing layer, and a light reflecting layer disposed on the phosphor-containing layer. The phosphor-containing layer contains a YAG phosphor and a Ga-YAG phosphor within the same layer, the Ga-YAG phosphor being a phosphor in which a portion of the aluminum constituting the YAG phosphor is substituted with gallium. A volumetric ratio of the Ga-YAG phosphor to the entirety of the YAG phosphor and the Ga-YAG phosphor is in a range of 19.0% to 80%.
    Type: Application
    Filed: August 24, 2021
    Publication date: December 9, 2021
    Inventors: Takafumi SUGIYAMA, Toshiyuki HIRAI, Masahiko SANO, Toru TAKASONE
  • Patent number: 11131433
    Abstract: A fluorescent module includes a fluorescent member, a heat dissipation member, and an optical relaxation member. The fluorescent member includes a phosphor-containing layer, and a light reflecting layer. The fluorescent member is secured to the heat dissipation member so that the light reflecting layer is arranged between the phosphor-contacting layer and the heat dissipation member. The optical relaxation member is configured to absorb and/or diffuse light. The optical relaxation member is arranged with respect to the fluorescent member so that the light reflecting layer is arranged between the phosphor-containing layer and the optical relaxation member.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: September 28, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Takafumi Sugiyama, Toshiyuki Hirai, Masahiko Sano, Toru Takasone
  • Publication number: 20210187928
    Abstract: A light emitting device can further improve light extraction efficiency. A method of manufacturing such a light emitting device can also prove advantageous. The light emitting device includes a light emitting element, a light-transmissive member which is disposed on a light extracting surface side of the light emitting element, and a reflecting layer disposed on an element bonding surface of the light transmissive member where the light emitting element is disposed and adjacent to the light emitting element. The light-transmissive member, in a plan view, has a planar dimension greater than the light extracting surface of the light emitting element.
    Type: Application
    Filed: March 10, 2021
    Publication date: June 24, 2021
    Inventors: Daisuke SANGA, Masatsugu ICHIKAWA, Shunsuke MINATO, Toru TAKASONE, Masahiko SANO
  • Publication number: 20210151644
    Abstract: A light emitting device including a mounting board, one or more light emitting elements, a light transmissive member, and a light reflective member. The light emitting element(s) are mounted on the mounting board, and each include an upper surface. The light transmissive member is bonded to the upper surface of each of the light emitting element(s). The light transmissive member has an upper surface and a lower surface, and allows light from the light emitting element(s) to be incident on the lower surface of the light transmissive member and to be output from the upper surface of the light transmissive member. The light reflective member covers surfaces of the light transmissive member and lateral surfaces of the light emitting element(s) and exposes the upper surface of the light transmissive member. At least a first portion of the mounting board is exposed from the light reflective member in a plan view.
    Type: Application
    Filed: January 28, 2021
    Publication date: May 20, 2021
    Applicant: NICHIA CORPORATION
    Inventors: Masakatsu TOMONARI, Masahiko SANO
  • Patent number: 10974492
    Abstract: A light emitting device can further improve light extraction efficiency. A method of manufacturing such a light emitting device can also prove advantageous. The light emitting device includes a light emitting element, a light-transmissive member which is disposed on a light extracting surface side of the light emitting element, and a reflecting layer disposed on an element bonding surface of the light transmissive member where the light emitting element is disposed and adjacent to the light emitting element. The light-transmissive member, in a plan view, has a planar dimension greater than the light extracting surface of the light emitting element.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: April 13, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Daisuke Sanga, Masatsugu Ichikawa, Shunsuke Minato, Toru Takasone, Masahiko Sano
  • Publication number: 20210091053
    Abstract: A light emitting module includes a substrate, a light reflective resin layer, wiring electrodes and a light emitting element. The light reflective resin layer is arranged on the substrate. The wiring electrodes are arranged over the substrate with the light reflective resin layer being interposed between the substrate and the wiring electrodes. The light emitting element has an electrode formation surface including a positive and negative pair of element electrodes, and a light emitting surface on a side opposite to the electrode formation surface. The light emitting element is arranged on top surfaces of the wiring electrodes with the element electrodes facing the top surfaces of the wiring electrodes.
    Type: Application
    Filed: December 9, 2020
    Publication date: March 25, 2021
    Inventors: So SAKAMAKI, Yasunori NAGAHAMA, Masahiko SANO, Katsuyoshi KADAN
  • Patent number: RE49298
    Abstract: The present invention provides a light emitting element capable or realizing at least one of lower resistance, higher output, higher power efficiency (1 m/W), higher mass productivity and lower cost of the element using a light transmissive electrode for an electrode arranged exterior to the light emitting structure. A semiconductor light emitting element includes a light emitting section, a first electrode and a second electrode on a semiconductor structure including first and second conductive type semiconductor layers, the first and the second electrodes respectively including at least two layers of a first layer of a light transmissive conductive film conducting to the first and the second conductive type semiconductor and a second layer arranged so as to conduct with the first layer. First and second light transmissive insulating films are respectively arranged so as to overlap at least one part of the first and the second layers.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: November 15, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Masahiko Sano, Takahiko Sakamoto, Keiji Emura, Katsuyoshi Kadan
  • Patent number: RE49406
    Abstract: The present invention provides a light emitting element capable or realizing at least one of lower resistance, higher output, higher power efficiency (1 m/W), higher mass productivity and lower cost of the element using a light transmissive electrode for an electrode arranged exterior to the light emitting structure. A semiconductor light emitting element includes a light emitting section, a first electrode and a second electrode on a semiconductor structure including first and second conductive type semiconductor layers, the first and the second electrodes respectively including at least two layers of a first layer of a light transmissive conductive film conducting to the first and the second conductive type semiconductor and a second layer arranged so as to conduct with the first layer. First and second light transmissive insulating films are respectively arranged so as to overlap at least one part of the first and the second layers.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: January 31, 2023
    Assignee: NICHIA CORPORATION
    Inventors: Masahiko Sano, Takahiko Sakamoto, Keiji Emura, Katsuyoshi Kadan