Patents by Inventor Yoichi BANDO

Yoichi BANDO 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: 12001044
    Abstract: A light emitting module includes a light source, a light guide member, and first and second light reflective members. The light guide member is configured to transmit light from the light source. The light guide member having an upper surface and a lower surface opposite to the upper surface. The first light reflective member is arranged on a lower surface side of the light guide member. The first light reflective member has a lower surface. The first light reflective member includes a first resin, and a first reflective body having a refractive index higher than a refractive index of the first resin. The second light reflective member is arranged on a lower surface side of the first light reflective member. The second light reflective member includes a second resin, and a second reflective body having a refractive index lower than a refractive index of the second resin.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: June 4, 2024
    Assignee: NICHIA CORPORATION
    Inventors: Takuya Nakabayashi, Daisuke Iwakura, Yoichi Bando, Yasunori Shinomiya, Satoshi Yoshinaga
  • Patent number: 11757062
    Abstract: A method for manufacturing a light emitting device includes: preparing a substrate having a first region and a second region surrounding the first region; mounting a plurality of light emitting elements in the first region; mounting a reinforcement member on the second region; forming and curing a sealing member in contact with the reinforcement member and with the light emitting elements, the sealing member having a lower rigidity than the reinforcement member; and cutting the substrate, the reinforcement member, and the sealing member to separate into individual light emitting devices each including one or more of the light emitting elements.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: September 12, 2023
    Assignee: NICHIA CORPORATION
    Inventor: Yoichi Bando
  • Patent number: 11709312
    Abstract: A planar light source includes: a light guide member, a light source including a light-emitting element and a first light adjustment member and being disposed in a first hole of the light guide member, a first light-transmissive member disposed in the first hole between a lateral surface of the light source and the light guide member and on the light source, and a second light adjustment member disposed on the first light-transmissive member. A transmittance of the first light-transmissive member is higher than a transmittance of the first light adjustment member and a transmittance of the second light adjustment member with respect to light emitted from the light source. The first light-transmissive member includes a first light-transmissive portion 1ocated between the first light adjustment member and the second light adjustment member, and a second light-transmissive portion 1ocated between the lateral surface of the light source and the light guide member.
    Type: Grant
    Filed: July 13, 2022
    Date of Patent: July 25, 2023
    Assignee: NICHIA CORPORATION
    Inventors: Satoshi Yoshinaga, Takuya Nakabayashi, Yuki Shibutani, Yoichi Bando, Yasushi Okamoto
  • Publication number: 20230116946
    Abstract: A light emitting module includes a light source, a light guide member, and first and second light reflective members. The light guide member is configured to transmit light from the light source. The light guide member having an upper surface and a lower surface opposite to the upper surface. The first light reflective member is arranged on a lower surface side of the light guide member. The first light reflective member has a lower surface. The first light reflective member includes a first resin, and a first reflective body having a refractive index higher than a refractive index of the first resin. The second light reflective member is arranged on a lower surface side of the first light reflective member. The second light reflective member includes a second resin, and a second reflective body having a refractive index lower than a refractive index of the second resin.
    Type: Application
    Filed: October 14, 2022
    Publication date: April 20, 2023
    Inventors: Takuya NAKABAYASHI, Daisuke IWAKURA, Yoichi BANDO, Yasunori SHINOMIYA, Satoshi YOSHINAGA
  • Publication number: 20230013159
    Abstract: A planar light source includes: a light guide member, a light source including a light-emitting element and a first light adjustment member and being disposed in a first hole of the light guide member, a first light-transmissive member disposed in the first hole between a lateral surface of the light source and the light guide member and on the light source, and a second light adjustment member disposed on the first light-transmissive member. A transmittance of the first light-transmissive member is higher than a transmittance of the first light adjustment member and a transmittance of the second light adjustment member with respect to light emitted from the light source. The first light-transmissive member includes a first light-transmissive portion 1ocated between the first light adjustment member and the second light adjustment member, and a second light-transmissive portion 1ocated between the lateral surface of the light source and the light guide member.
    Type: Application
    Filed: July 13, 2022
    Publication date: January 19, 2023
    Applicant: NICHIA CORPORATION
    Inventors: Satoshi YOSHINAGA, Takuya NAKABAYASHI, Yuki SHIBUTANI, Yoichi BANDO, Yasushi OKAMOTO
  • Patent number: 11165006
    Abstract: The method of manufacturing a light emitting device includes: providing a first intermediate body, the first intermediate body including a temporary substrate including a base and a pair of first wirings, and a light emitting element including a pair of element electrodes, each of the pair of element electrodes connected to a respective one of the first wirings via a respective one of a plurality of solders; removing a portion of the temporary substrate to form a second intermediate body having a second lower surface in which a lower surface of each of the element electrodes and a lower surface of each of the plurality of solders are located; and forming a pair of external connection electrodes on the second lower surface such that each of the pair of external connection electrodes cover a respective one of the element electrodes and a respective one of the plurality of solders.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: November 2, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Toru Hashimoto, Yoichi Bando, Tadaaki Ikeda, Gensui Tamura
  • Patent number: 11063192
    Abstract: A light emitting device is provided. The light emitting device includes a light emitting element, a wavelength converting member, a light transmissive member, an adhesive member, and a light reflective member. The wavelength converting member has an upper surface and lateral surfaces, contains a fluorescent substance, and is placed on the light emitting element. The light transmissive member covers the upper surface of the wavelength converting member. The adhesive member is interposed between the light emitting element and the wavelength converting member, and covers the lateral surfaces of the wavelength converting member. The light reflective member covers the lateral surfaces of the wavelength converting member via the adhesive member.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: July 13, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Hiroto Tamaki, Yoshiki Sato, Yoichi Bando
  • Patent number: 11056627
    Abstract: A light emitting device includes: a light emitting element; a wavelength conversion member disposed on or above an upper surface of the light emitting element; a light-transmissive member disposed on an upper surface of the wavelength conversion member; and a light reflective member disposed on each side surface of the light emitting element, the wavelength conversion member, and the light-transmissive member, wherein an upper surface of the light reflective member is coplanar with an upper surface of the light-transmissive member, and wherein each of the upper surface of the light reflective member and the upper surface of the light-transmissive member is a cut surface.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: July 6, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Suguru Beppu, Yoichi Bando, Hiroto Tamaki, Takuya Nakabayashi
  • Publication number: 20210074878
    Abstract: A method for manufacturing a light emitting device includes: preparing a substrate having a first region and a second region surrounding the first region; mounting a plurality of light emitting elements in the first region; mounting a reinforcement member on the second region; forming and curing a sealing member in contact with the reinforcement member and with the light emitting elements, the sealing member having a lower rigidity than the reinforcement member; and cutting the substrate, the reinforcement member, and the sealing member to separate into individual light emitting devices each including one or more of the light emitting elements.
    Type: Application
    Filed: September 9, 2020
    Publication date: March 11, 2021
    Inventor: Yoichi BANDO
  • Patent number: 10840420
    Abstract: A method for manufacturing a light emitting device, includes: providing a reflective film; providing a light emitting element having a semiconductor stacked layer and electrodes formed at a first main surface side of the light emitting element; pressing the reflective film on the first main surface side to deform the reflective film, and disposing the reflective film on at least a side surface of the light emitting element; and exposing the electrodes of the light emitting element from the reflective film.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: November 17, 2020
    Assignee: NICHIA CORPORATION
    Inventor: Yoichi Bando
  • Publication number: 20200176652
    Abstract: A light emitting device includes: a light emitting element; a wavelength conversion member disposed on or above an upper surface of the light emitting element; a light-transmissive member disposed on an upper surface of the wavelength conversion member; and a light reflective member disposed on each side surface of the light emitting element, the wavelength conversion member, and the light-transmissive member, wherein an upper surface of the light reflective member is coplanar with an upper surface of the light-transmissive member, and wherein each of the upper surface of the light reflective member and the upper surface of the light-transmissive member is a cut surface.
    Type: Application
    Filed: February 7, 2020
    Publication date: June 4, 2020
    Applicant: NICHIA CORPORATION
    Inventors: Suguru BEPPU, Yoichi BANDO, Hiroto TAMAKI, Takuya NAKABAYASHI
  • Publication number: 20200098964
    Abstract: The method of manufacturing a light emitting device includes: providing a first intermediate body, the first intermediate body including a temporary substrate including a base and a pair of first wirings, and a light emitting element including a pair of element electrodes, each of the pair of element electrodes connected to a respective one of the first wirings via a respective one of a plurality of solders; removing a portion of the temporary substrate to form a second intermediate body having a second lower surface in which a lower surface of each of the element electrodes and a lower surface of each of the plurality of solders are located; and forming a pair of external connection electrodes on the second lower surface such that each of the pair of external connection electrodes cover a respective one of the element electrodes and a respective one of the plurality of solders.
    Type: Application
    Filed: September 25, 2019
    Publication date: March 26, 2020
    Applicant: NICHIA CORPORATION
    Inventors: Toru HASHIMOTO, Yoichi BANDO, Tadaaki IKEDA, Gensui TAMURA
  • Patent number: 10600942
    Abstract: A light emitting device includes a semiconductor light emitting element; and a light reflective member having a multilayer structure and covering the side faces of the semiconductor light emitting element. The light reflective member includes: a first layer disposed on an inner, semiconductor light emitting element side, the first layer comprising a light-transmissive resin containing a light reflective substance, and a second layer disposed in contact with an outer side of the first layer, the second layer comprising a light-transmissive resin containing the light reflective substance at a lower content than that of the first layer.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: March 24, 2020
    Assignee: NICHIA CORPORATION
    Inventors: Suguru Beppu, Yoichi Bando, Hiroto Tamaki, Takuya Nakabayashi
  • Publication number: 20190140152
    Abstract: A light emitting device includes a semiconductor light emitting element; and a light reflective member having a multilayer structure and covering the side faces of the semiconductor light emitting element. The light reflective member includes: a first layer disposed on an inner, semiconductor light emitting element side, the first layer comprising a light-transmissive resin containing a light reflective substance, and a second layer disposed in contact with an outer side of the first layer, the second layer comprising a light-transmissive resin containing the light reflective substance at a lower content than that of the first layer.
    Type: Application
    Filed: December 12, 2018
    Publication date: May 9, 2019
    Applicant: NICHIA CORPORATION
    Inventors: Suguru BEPPU, Yoichi BANDO, Hiroto TAMAKI, Takuya NAKABAYASHI
  • Patent number: 10193036
    Abstract: A light emitting device includes a semiconductor light emitting element; and a light reflective member having a multilayer structure and covering the side faces of the semiconductor light emitting element. The light reflective member includes: a first layer disposed on an inner, semiconductor light emitting element side, the first layer comprising a light-transmissive resin containing a light reflective substance, and a second layer disposed in contact with an outer side of the first layer, the second layer comprising a light-transmissive resin containing the light reflective substance at a lower content than that of the first layer.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: January 29, 2019
    Assignee: NICHIA CORPORATION
    Inventors: Suguru Beppu, Yoichi Bando, Hiroto Tamaki, Takuya Nakabayashi
  • Publication number: 20180151786
    Abstract: A light emitting device includes a semiconductor light emitting element; and a light reflective member having a multilayer structure and covering the side faces of the semiconductor light emitting element. The light reflective member includes: a first layer disposed on an inner, semiconductor light emitting element side, the first layer comprising a light-transmissive resin containing a light reflective substance, and a second layer disposed in contact with an outer side of the first layer, the second layer comprising a light-transmissive resin containing the light reflective substance at a lower content than that of the first layer.
    Type: Application
    Filed: January 25, 2018
    Publication date: May 31, 2018
    Applicant: NICHIA CORPORATION
    Inventors: Suguru BEPPU, Yoichi BANDO, Hiroto TAMAKI, Takuya NAKABAYASHI
  • Patent number: 9947846
    Abstract: A method of manufacturing a light emitting device includes providing a reflecting sheet having a first surface and a second surface and defining through-holes; placing a wavelength-converting sheet on a first surface side of the reflecting sheet to cover openings of the through-holes at the first surface side; disposing a light-transmissive adhesive in the through-holes; disposing a light emitting element in each of the through-holes so that a light emitting surface of the light emitting element faces the wavelength converting sheet; fixing the light emitting element in the through-hole via the adhesive; and covering the second surface of the reflecting sheet and an outer surface of the adhesive with a reflecting material.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: April 17, 2018
    Assignee: NICHIA CORPORATION
    Inventor: Yoichi Bando
  • Patent number: 9917236
    Abstract: A light emitting device includes a semiconductor light emitting element; and a light reflective member having a multilayer structure and covering the side faces of the semiconductor light emitting element. The light reflective member includes: a first layer disposed on an inner, semiconductor light emitting element side, the first layer comprising a light-transmissive resin containing a light reflective substance, and a second layer disposed in contact with an outer side of the first layer, the second layer comprising a light-transmissive resin containing the light reflective substance at a lower content than that of the first layer.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: March 13, 2018
    Assignee: NICHIA CORPORATION
    Inventors: Suguru Beppu, Yoichi Bando, Hiroto Tamaki, Takuya Nakabayashi
  • Patent number: 9837590
    Abstract: A method of producing a light emitting device includes providing a light emitting element on a base member, the base member including an insulating member and a pair of connection terminals at least on an upper surface thereof. The connection terminals have an exposed portion exposed to outside, with the light emitting element electrically connected to the connection terminals. A covering member is disposed to cover at least a portion of the upper surface of the light emitting element, and a protective layer is disposed to cover at least a portion of the exposed portions of the connection terminals. The covering member is removed, and material from the upper surface side of the base member is supplied to dispose a light-transmissive member on the upper surface of the light emitting element. At least a portion of the light-transmissive member present on the protective layer is then removed.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: December 5, 2017
    Assignee: NICHIA CORPORATION
    Inventors: Takeshi Ikegami, Suguru Beppu, Tatsuya Kanazawa, Yoichi Bando
  • Patent number: 9735326
    Abstract: A method of producing a light emitting device includes providing a light emitting element on a base member, the base member including an insulating member and a pair of connection terminals at least on an upper surface thereof. The connection terminals have an exposed portion exposed to outside, with the light emitting element electrically connected to the connection terminals. A covering member is disposed to cover at least a portion of the upper surface of the light emitting element, and a protective layer is disposed to cover at least a portion of the exposed portions of the connection terminals. The covering member is removed, and material from the upper surface side of the base member is supplied to dispose a light-transmissive member on the upper surface of the light emitting element. At least a portion of the light-transmissive member present on the protective layer is then removed.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: August 15, 2017
    Assignee: NICHIA CORPORATION
    Inventors: Takeshi Ikegami, Suguru Beppu, Tatsuya Kanazawa, Yoichi Bando