Patents by Inventor Takeshi Kususe

Takeshi Kususe 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: 20230317897
    Abstract: An optical member has a first surface, a second surface opposite to the first surface, and a lateral surface between the first surface and the second surface and includes: a reflective member including a light-reflective material and an inorganic binder; a wavelength conversion member disposed in the reflective member; and a heat dissipation member disposed in the reflective member apart from the wavelength conversion member.
    Type: Application
    Filed: March 30, 2023
    Publication date: October 5, 2023
    Applicant: NICHIA CORPORATION
    Inventor: Takeshi KUSUSE
  • Publication number: 20230238492
    Abstract: Provided is a light-emitting device including a light-emitting element, and a light-reflective covering member that covers the light-emitting element. The light-reflective covering member includes a light-reflective material having a plate shape, silica, and an alkali metal. The light-reflective material has a mean particle size of a range of 0.6 ?m to 43 ?m, and the light-reflective material has an average aspect ratio of 10 or greater.
    Type: Application
    Filed: March 29, 2023
    Publication date: July 27, 2023
    Applicant: NICHIA CORPORATION
    Inventors: Takeshi KUSUSE, Kazuya TAMURA
  • 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
  • Patent number: 10461215
    Abstract: A method of manufacturing a light-emitting device includes: directly bonding a plurality of light-emitting elements to a collective light-transmissive member having a plate shape, each light-emitting element comprising a plurality of electrodes; subsequently, forming stud bumps on each electrode of each light-emitting element; subsequently, dividing the collective light-transmissive member to obtain a plurality of light-transmissive members on each of which one or more of the light-emitting elements are bonded; and subsequently, mounting the light-emitting elements on or above a mounting base by a flip-chip technique.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: October 29, 2019
    Assignee: NICHIA CORPORATION
    Inventors: Takeshi Kususe, Satoshi Shichijo, Kunihito Sugimoto
  • Patent number: 10326064
    Abstract: A light emitting device includes a light emitting element, a light transmissive member, and a cover member. The light transmissive member is disposed on an upper face of the light emitting element. The cover member covers a lateral face of the light emitting element and a lateral face of the light transmissive member, and includes first and second cover members. The first cover member is disposed adjacent to the lateral face of the light emitting element and the lateral face of the light transmissive member, and contains a first light reflecting material and a fluorine-based first resin. The second cover member covers the first cover member, and contains a second light reflecting material and a second resin. A refractive index difference between the first light reflecting material and the first resin is larger than a refractive index difference between the second light reflecting material and the second resin.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: June 18, 2019
    Assignee: NICHIA CORPORATION
    Inventors: Shusaku Bando, Dai Wakamatsu, Takeshi Kususe
  • Patent number: 10243124
    Abstract: A light emitting device includes a light emitting element having a light emitting surface from which the light emitting element is configured to emit a first light having a first peak emission wavelength in a wavelength range of 380 nm or longer and 430 nm or shorter. A light transform layer is disposed on the light emitting surface of the light emitting element to transform the first light to a second light having a second peak wavelength longer than the first peak wavelength. A reflecting film is provided on the light transform layer to reflect the first light and to transmit the second light. The reflecting film has a reflectivity of 40% or more in a reflection spectrum of the reflecting film with respect to a light having a wavelength of 380 nm or longer and 430 nm or shorter and an angle of incidence from 0° to 85°.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: March 26, 2019
    Assignee: NICHIA CORPORATION
    Inventors: Taiki Yuasa, Takeshi Kususe
  • Publication number: 20190006554
    Abstract: A method of manufacturing a light-emitting device includes: directly bonding a plurality of light-emitting elements to a collective light-transmissive member having a plate shape, each light-emitting element comprising a plurality of electrodes; subsequently, forming stud bumps on each electrode of each light-emitting element; subsequently, dividing the collective light-transmissive member to obtain a plurality of light-transmissive members on each of which one or more of the light-emitting elements are bonded; and subsequently, mounting the light-emitting elements on or above a mounting base by a flip-chip technique.
    Type: Application
    Filed: June 29, 2018
    Publication date: January 3, 2019
    Applicant: NICHIA CORPORATION
    Inventors: Takeshi KUSUSE, Satoshi SHICHIJO, Kunihito SUGIMOTO
  • Publication number: 20180309035
    Abstract: A light emitting device Includes a light emitting element, a light transmissive member, and a cover member. The light transmissive member is disposed on an upper face of the light emitting element. The cover member covers a lateral face of the light emitting element and a lateral face of the light transmissive member, and includes first and second cover members. The first cover member is disposed adjacent to the lateral face of the light emitting element and the lateral face of the light transmissive member, and contains a first light reflecting material and a fluorine-based first resin. The second cover member covers the first cover member, and contains a second light reflecting material and a second resin. A refractive index difference between the first light reflecting material and the first resin is larger than a refractive index difference between the second light reflecting material and the second resin.
    Type: Application
    Filed: April 17, 2018
    Publication date: October 25, 2018
    Inventors: Shusaku BANDO, Dai WAKAMATSU, Takeshi KUSUSE
  • Publication number: 20180182941
    Abstract: A light emitting device includes a light emitting element having a light emitting surface from which the light emitting element is configured to emit a first light having a first peak emission wavelength in a wavelength range of 380 nm or longer and 430 nm or shorter. A light transform layer is disposed on the light emitting surface of the light emitting element to transform the first light to a second light having a second peak wavelength longer than the first peak wavelength. A reflecting film is provided on the light transform layer to reflect the first light and to transmit the second light. The reflecting film has a reflectivity of 40% or more in a reflection spectrum of the reflecting film with respect to a light having a wavelength of 380 nm or longer and 430 nm or shorter and an angle of incidence from 0° to 85°.
    Type: Application
    Filed: December 5, 2017
    Publication date: June 28, 2018
    Applicant: NICHIA CORPORATION
    Inventors: Taiki YUASA, Takeshi Kususe
  • Patent number: 9893238
    Abstract: A light emitting device includes a semiconductor light emitting element including a semiconductor stacked-layer body and an electrode disposed on a first surface of the semiconductor stacked-layer body; a resin member disposed on a first surface side of the semiconductor stacked-layer body; and a metal layer disposed in the resin member and electrically connected to the electrode. A recess is defined in an upper surface of the resin member. The metal layer is projected from the upper surface of the resin member, and is disposed to surround at least a portion of the recess.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: February 13, 2018
    Assignee: NICHIA CORPORATION
    Inventors: Takayuki Sogo, Takanobu Sogai, Takeshi Kususe
  • Publication number: 20170104133
    Abstract: A light emitting device includes a semiconductor light emitting element including a semiconductor stacked-layer body and an electrode disposed on a first surface of the semiconductor stacked-layer body; a resin member disposed on a first surface side of the semiconductor stacked-layer body; and a metal layer disposed in the resin member and electrically connected to the electrode. A recess is defined in an upper surface of the resin member. The metal layer is projected from the upper surface of the resin member, and is disposed to surround at least a portion of the recess.
    Type: Application
    Filed: December 20, 2016
    Publication date: April 13, 2017
    Applicant: NICHIA CORPORATION
    Inventors: Takayuki SOGO, Takanobu SOGAI, Takeshi KUSUSE
  • Patent number: 9559006
    Abstract: A light emitting device includes a semiconductor light emitting element including a semiconductor stacked-layer body and an electrode disposed on a first surface of the semiconductor stacked-layer body; a resin member disposed on a first surface side of the semiconductor stacked-layer body; and a metal layer disposed in the resin member and electrically connected to the electrode. A recess is defined in an upper surface of the resin member. The metal layer is projected from the upper surface of the resin member, and is disposed to surround at least a portion of the recess.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: January 31, 2017
    Assignee: NICHIA CORPORATION
    Inventors: Takayuki Sogo, Takanobu Sogai, Takeshi Kususe
  • Patent number: 9293674
    Abstract: A semiconductor device has a light emitting element, and a resin layer; the light emitting element includes a semiconductor laminated body in which a first semiconductor layer and a second semiconductor layer are laminated in sequence, a second electrode connected to the second semiconductor layer on an upper surface of the second semiconductor layer that forms an upper surface of the semiconductor laminated body, and a first electrode connected to the first semiconductor layer on an upper surface of the first semiconductor layer in which a portion of the second semiconductor layer on one surface of the semiconductor laminated body is removed and a portion of the first semiconductor layer is exposed; and the resin layer is configured to cover at least a side surface of the light emitting element, and an upper surface of the resin layer is lower than the upper surface of the semiconductor laminated body.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: March 22, 2016
    Assignees: NICHIA CORPORATION, CITIZEN ELECTRONICS CO., LTD., CITIZEN HOLDINGS CO., LTD.
    Inventors: Takeshi Kususe, Toshiaki Ogawa, Shunsuke Minato, Nodoka Oyamada
  • Publication number: 20160043290
    Abstract: A light emitting device includes a semiconductor light emitting element including a semiconductor stacked-layer body and an electrode disposed on a first surface of the semiconductor stacked-layer body; a resin member disposed on a first surface side of the semiconductor stacked-layer body; and a metal layer disposed in the resin member and electrically connected to the electrode. A recess is defined in an upper surface of the resin member. The metal layer is projected from the upper surface of the resin member, and is disposed to surround at least a portion of the recess.
    Type: Application
    Filed: August 7, 2015
    Publication date: February 11, 2016
    Applicant: Nichia Corporation
    Inventors: Takayuki SOGO, Takanobu SOGAI, Takeshi KUSUSE
  • Patent number: 8981420
    Abstract: A nitride semiconductor device includes a conductive oxide film with high reliability is provided. The nitride semiconductor device having a nitride semiconductor layer includes a conductive oxide film on the nitride semiconductor layer and a pad electrode on the conductive oxide film. The pad electrode includes a junction layer that contains a first metal and is in contact with the conductive oxide film, and a pad layer that contains a second metal.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: March 17, 2015
    Assignee: Nichia Corporation
    Inventors: Takeshi Kususe, Yoshiyuki Aihara, Daisuke Sanga, Kouichiroh Deguchi
  • Patent number: 8823031
    Abstract: A semiconductor light emitting device includes a semiconductor structure, a transparent electrically-conducting layer, a dielectric film, and a metal reflecting layer. The semiconductor structure includes an active region. The transparent electrically-conducting layer is formed on the upper surface of the semiconductor structure. The dielectric film is formed on the upper surface of the transparent electrically-conducting layer. The metal reflecting layer is formed on the upper surface of the dielectric film. The dielectric film has at least one opening whereby partially exposing the transparent electrically-conducting layer. The transparent electrically-conducting layer is electrically connected to the metal reflecting layer through the opening. A barrier layer is partially formed and covers the opening so that the barrier layer is interposed between the transparent electrically-conducting layer and the metal reflecting layer.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: September 2, 2014
    Assignee: Nichia Corporation
    Inventors: Takeshi Kususe, Naoki Azuma, Toshiaki Ogawa, Hisashi Kasai
  • Publication number: 20140225143
    Abstract: A semiconductor device has a light emitting element, and a resin layer; the light emitting element includes a semiconductor laminated body in which a first semiconductor layer and a second semiconductor layer are laminated in sequence, a second electrode connected to the second semiconductor layer on an upper surface of the second semiconductor layer that forms an upper surface of the semiconductor laminated body, and a first electrode connected to the first semiconductor layer on an upper surface of the first semiconductor layer in which a portion of the second semiconductor layer on one surface of the semiconductor laminated body is removed and a portion of the first semiconductor layer is exposed; and the resin layer is configured to cover at least a side surface of the light emitting element, and an upper surface of the resin layer is lower than the upper surface of the semiconductor laminated body.
    Type: Application
    Filed: February 10, 2014
    Publication date: August 14, 2014
    Applicants: NICHIA CORPORATION, CITIZEN HOLDINGS CO., LTD., CITIZEN ELECTRONICS CO., LTD.
    Inventors: Takeshi KUSUSE, Toshiaki OGAWA, Shunsuke MINATO, Nodoka OYAMADA
  • Patent number: 8742438
    Abstract: A nitride semiconductor light-emitting device includes a layered portion emitting light on a substrate. The layered portion includes an n-type semiconductor layer, an active layer, and a p-type semiconductor layer. The periphery of the layered portion is inclined, and the surface of the n-type semiconductor layer is exposed at the periphery. An n electrode is disposed on the exposed surface of the n-type semiconductor layer. This device structure can enhance the emission efficiency and the light extraction efficiency.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: June 3, 2014
    Assignee: Nichia Corporation
    Inventors: Takeshi Kususe, Takahiko Sakamoto
  • Publication number: 20130049053
    Abstract: A semiconductor light emitting device includes a semiconductor structure, a transparent electrically-conducting layer, a dielectric film, and a metal reflecting layer. The semiconductor structure includes an active region. The transparent electrically-conducting layer is formed on the upper surface of the semiconductor structure. The dielectric film is formed on the upper surface of the transparent electrically-conducting layer. The metal reflecting layer is formed on the upper surface of the dielectric film. The dielectric film has at least one opening whereby partially exposing the transparent electrically-conducting layer. The transparent electrically-conducting layer is electrically connected to the metal reflecting layer through the opening. A barrier layer is partially formed and covers the opening so that the barrier layer is interposed between the transparent electrically-conducting layer and the metal reflecting layer.
    Type: Application
    Filed: August 30, 2012
    Publication date: February 28, 2013
    Applicant: NICHIA CORPORATION
    Inventors: Takeshi KUSUSE, Naoki Azuma, Toshiaki Ogawa, Hisashi Kasai