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Naoto OKA

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Patents Grantslast 30 patents

  • Information Patent Grant

    Chip resistor and method for manufacturing chip resistor
    • Patent number 11,798,714
    • Issue date Oct 24, 2023
    • KOA Corporation
    • Naoto Oka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Chip component
    • Patent number 11,657,932
    • Issue date May 23, 2023
    • Koa Corporation
    • Naoto Oka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Resistor trimming method
    • Patent number 10,446,304
    • Issue date Oct 15, 2019
    • KOA Corporation
    • Naoto Oka
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

  • Information Patent Application

    CHIP COMPONENT
    • Publication number 20220399140
    • Publication date Dec 15, 2022
    • KOA CORPORATION
    • Naoto OKA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    CHIP RESISTOR AND METHOD FOR MANUFACTURING CHIP RESISTOR
    • Publication number 20220399143
    • Publication date Dec 15, 2022
    • KOA CORPORATION
    • Naoto OKA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Resistor Trimming Method
    • Publication number 20170301439
    • Publication date Oct 19, 2017
    • KOA Corporation
    • Naoto OKA
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR