Patents by Inventor Teppei Kunimune

Teppei Kunimune 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: 12625301
    Abstract: A wavelength conversion module includes a base, a wavelength conversion member consisting of a phosphor, and a bonding member including a metal part that bonds the base and the wavelength conversion member. A thickness of the wavelength conversion member is less than 100 ?m.
    Type: Grant
    Filed: July 20, 2022
    Date of Patent: May 12, 2026
    Assignee: NICHIA CORPORATION
    Inventors: Teppei Kunimune, Yasuaki Kawata
  • Publication number: 20260085239
    Abstract: A wavelength conversion member includes a substrate having light reflectivity, and a phosphor layer disposed on the substrate and including phosphor particles, oxide particles adhering to the phosphor particles, and a covering film containing silicon oxide and covering the phosphor particles and the oxide particles. A material of the oxide particles differs from a material of the covering film, and an extinction coefficient of the covering film is less than 1.0×10?5.
    Type: Application
    Filed: September 23, 2025
    Publication date: March 26, 2026
    Applicant: NICHIA CORPORATION
    Inventors: Teppei KUNIMUNE, Toshimasa AMIYA
  • Patent number: 12571519
    Abstract: A wavelength conversion module includes: a phosphor member; and a light-transmissive substrate that is directly bonded to the phosphor member, wherein a higher thermal conductivity of the light-transmissive substrate is higher than a thermal conductivity of the phosphor member, and the light-transmissive substrate has a thickness in a range from 100 ?m to 600 ?m.
    Type: Grant
    Filed: January 27, 2023
    Date of Patent: March 10, 2026
    Assignee: NICHIA CORPORATION
    Inventors: Teppei Kunimune, Yukihiro Hayashi, Masatsugu Ichikawa
  • Publication number: 20260040745
    Abstract: A light-emitting module includes: a light-emitting device including a first light-emitting element configured to output first light having a peak wavelength in a range from 430 nm to 480 nm; and a second light-emitting element configured to output second light having a peak wavelength in a range from 500 nm to 600 nm; and a wavelength conversion member configured to absorb light having a wavelength included in at least one of the first light and the second light and output third light having a peak wavelength in a range from 600 nm to 780 nm. The first light-emitting element and the second light-emitting element are disposed in the light-emitting device, and the wavelength conversion member is disposed separately from the light-emitting device.
    Type: Application
    Filed: July 30, 2025
    Publication date: February 5, 2026
    Inventors: Teppei KUNIMUNE, Takuya Sawanobori
  • Patent number: 12447528
    Abstract: A method of impregnating voids of a sintered metal body having a porous structure with resin, the method comprising preparing a resin material that contains a defoamer containing hydrophilic or hydrophobic particles, defoaming the prepared resin material by reducing pressure of the resin material, applying the defoamed resin material onto a surface of the sintered metal body, impregnating the voids with the resin material by reducing pressure of the sintered metal body and the resin material applied to the surface of the sintered metal body so as to expel gas from the voids; and curing the resin material by heating.
    Type: Grant
    Filed: July 26, 2023
    Date of Patent: October 21, 2025
    Assignee: NICHIA CORPORATION
    Inventors: Teppei Kunimune, Masafumi Kuramoto
  • Publication number: 20250198598
    Abstract: A wavelength conversion module includes: a phosphor member; and a light-transmissive substrate that is directly bonded to the phosphor member, wherein a higher thermal conductivity of the light-transmissive substrate is higher than a thermal conductivity of the phosphor member, and the light-transmissive substrate has a thickness in a range from 100 ?m to 600 ?m.
    Type: Application
    Filed: January 27, 2023
    Publication date: June 19, 2025
    Applicant: NICHIA CORPORATION
    Inventors: Teppei KUNIMUNE, Yukihiro HAYASHI, Masatsugu ICHIKAWA
  • Patent number: 12125607
    Abstract: There is a problem that when a silver powder sintering paste that is substantially free from resin is used, an organic solvent used as a dispersion medium bleeds, which results in contamination and wire bonding defects. In order to solve the problem, provided is a metal powder sintering paste that contains, as a principal component, silver particles having an average particle diameter (a median diameter) of 0.3 ?m to 5 ?m and further contains an anionic surfactant but is substantially free from resin.
    Type: Grant
    Filed: March 13, 2023
    Date of Patent: October 22, 2024
    Assignee: NICHIA CORPORATION
    Inventors: Teppei Kunimune, Masafumi Kuramoto
  • Publication number: 20230364676
    Abstract: A method of impregnating voids of a sintered metal body having a porous structure with resin, the method comprising preparing a resin material that contains a defoamer containing hydrophilic or hydrophobic particles, defoaming the prepared resin material by reducing pressure of the resin material, applying the defoamed resin material onto a surface of the sintered metal body, impregnating the voids with the resin material by reducing pressure of the sintered metal body and the resin material applied to the surface of the sintered metal body so as to expel gas from the voids; and curing the resin material by heating.
    Type: Application
    Filed: July 26, 2023
    Publication date: November 16, 2023
    Applicant: Nichia Corporation
    Inventors: Teppei KUNIMUNE, Masafumi KURAMOTO
  • Patent number: 11752551
    Abstract: A method of impregnating voids of a sintered metal body having a porous structure with resin, the method comprising preparing a resin material that contains a defoamer containing hydrophilic or hydrophobic particles, defoaming the prepared resin material by reducing pressure of the resin material, applying the defoamed resin material onto a surface of the sintered metal body, impregnating the voids with the resin material by reducing pressure of the sintered metal body and the resin material applied to the surface of the sintered metal body so as to expel gas from the voids; and curing the resin material by heating.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: September 12, 2023
    Assignee: NICHIA CORPORATION
    Inventors: Teppei Kunimune, Masafumi Kuramoto
  • Patent number: 11739238
    Abstract: A method of producing an electrically conductive material includes hardening, at a temperature in a range of 120° C. to 300° C., an electrically conductive adhesive that constitutes: (A) a polyether polymer having a backbone of a repeating unit of the formula —R1—O—, wherein R1 is a hydrocarbon group having 1 to 10 carbon atoms and an end group which is a hydrolyzable silyl group; and (B) silver particles.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: August 29, 2023
    Assignee: Nichia Corporation
    Inventors: Teppei Kunimune, Masafumi Kuramoto
  • Publication number: 20230215596
    Abstract: There is a problem that when a silver powder sintering paste that is substantially free from resin is used, an organic solvent used as a dispersion medium bleeds, which results in contamination and wire bonding defects. In order to solve the problem, provided is a metal powder sintering paste that contains, as a principal component, silver particles having an average particle diameter (a median diameter) of 0.3 ?m to 5 ?m and further contains an anionic surfactant but is substantially free from resin.
    Type: Application
    Filed: March 13, 2023
    Publication date: July 6, 2023
    Applicant: NICHIA CORPORATION
    Inventors: Teppei KUNIMUNE, Masafumi KURAMOTO
  • Patent number: 11634596
    Abstract: There is a problem that when a silver powder sintering paste that is substantially free from resin is used, an organic solvent used as a dispersion medium bleeds, which results in contamination and wire bonding defects. In order to solve the problem, provided is a metal powder sintering paste that contains, as a principal component, silver particles having an average particle diameter (a median diameter) of 0.3 ?m to 5 ?m and further contains an anionic surfactant but is substantially free from resin.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: April 25, 2023
    Assignee: NICHIA CORPORATION
    Inventors: Teppei Kunimune, Masafumi Kuramoto
  • Publication number: 20230041361
    Abstract: A wavelength conversion module includes a base, a wavelength conversion member consisting of a phosphor, and a bonding member including a metal part that bonds the base and the wavelength conversion member. A thickness of the wavelength conversion member is less than 100 ?m.
    Type: Application
    Filed: July 20, 2022
    Publication date: February 9, 2023
    Inventors: Teppei KUNIMUNE, Yasuaki KAWATA
  • Publication number: 20220017793
    Abstract: Disclosed is an electrically conductive adhesive containing: (A) a polyether polymer having a backbone comprising a repeating unit of the formula: —R1—O— wherein R1 is a hydrocarbon group having 1 to 10 carbon atoms, and an end group which is a hydrolyzable silyl group, and (B) silver particles. Further disclosed is an electrically conductive material which is a hardened product of the electrically conductive adhesive.
    Type: Application
    Filed: September 29, 2021
    Publication date: January 20, 2022
    Applicant: Nichia Corporation
    Inventors: Teppei KUNIMUNE, Masafumi KURAMOTO
  • Patent number: 11162004
    Abstract: Disclosed is an electrically conductive adhesive containing: (A) a polyether polymer having a backbone comprising a repeating unit of the formula: —R1—O— wherein R1 is a hydrocarbon group having 1 to 10 carbon atoms, and an end group which is a hydrolyzable silyl group, and (B) silver particles. Further disclosed is an electrically conductive material which is a hardened product of the electrically conductive adhesive.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: November 2, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Teppei Kunimune, Masafumi Kuramoto
  • Publication number: 20210323061
    Abstract: A method of impregnating voids of a sintered metal body having a porous structure with resin, the method comprising preparing a resin material that contains a defoamer containing hydrophilic or hydrophobic particles, defoaming the prepared resin material by reducing pressure of the resin material, applying the defoamed resin material onto a surface of the sintered metal body, impregnating the voids with the resin material by reducing pressure of the sintered metal body and the resin material applied to the surface of the sintered metal body so as to expel gas from the voids; and curing the resin material by heating.
    Type: Application
    Filed: April 13, 2021
    Publication date: October 21, 2021
    Applicant: Nichia Corporation
    Inventors: Teppei KUNIMUNE, Masafumi KURAMOTO
  • Publication number: 20210147695
    Abstract: There is a problem that when a silver powder sintering paste that is substantially free from resin is used, an organic solvent used as a dispersion medium bleeds, which results in contamination and wire bonding defects. In order to solve the problem, provided is a metal powder sintering paste that contains, as a principal component, silver particles having an average particle diameter (a median diameter) of 0.3 ?m to 5 ?m and further contains an anionic surfactant but is substantially free from resin.
    Type: Application
    Filed: January 26, 2021
    Publication date: May 20, 2021
    Applicant: NICHIA CORPORATION
    Inventors: Teppei KUNIMUNE, Masafumi KURAMOTO
  • Patent number: 10941304
    Abstract: There is a problem that when a silver powder sintering paste that is substantially free from resin is used, an organic solvent used as a dispersion medium bleeds, which results in contamination and wire bonding defects. In order to solve the problem, provided is a metal powder sintering paste that contains, as a principal component, silver particles having an average particle diameter (a median diameter) of 0.3 ?m to 5 ?m and further contains an anionic surfactant but is substantially free from resin.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: March 9, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Teppei Kunimune, Masafumi Kuramoto
  • Patent number: 10875127
    Abstract: The present disclosure provides a method for bonding an electronic component and a method for manufacturing a bonded body, which are capable of sintering a silver paste at a comparatively low temperature. Disclosed is a method for bonding an electronic component using a silver paste containing silver particles, the method including: applying a silver paste containing silver particles on a surface of a substrate and setting electronic components on the silver paste applied, heating in a reducing atmosphere at a temperature of lower than 300° C., and after heating in the reducing atmosphere, heating in an oxidizing atmosphere at a temperature of 300° C. or lower.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: December 29, 2020
    Assignee: NICHIA CORPORATION
    Inventor: Teppei Kunimune
  • Patent number: 10707388
    Abstract: A semiconductor device includes a base, a semiconductor element mounted on the base, a porous metal sintered body and a sealing member. The porous metal sintered body is provided on the base in an area different from an area on which the semiconductor element is mounted. The sealing member covers the semiconductor element. The sealing member is placed inside the porous metal sintered body.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: July 7, 2020
    Assignee: NICHIA CORPORATION
    Inventors: Teppei Kunimune, Masafumi Kuramoto