TREA

Kumpei KOBAYASHI

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for using white light source, and white light source
    • Patent number 12,072,069
    • Issue date Aug 27, 2024
    • SEOUL SEMICONDUCTOR CO., LTD.
    • Masahiko Yamakawa
    • F21 - LIGHTING
  • Information Patent Grant

    White light source system
    • Patent number 11,978,726
    • Issue date May 7, 2024
    • Seoul Semiconductor Co., Ltd.
    • Masahiko Yamakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    White light source system
    • Patent number 11,721,675
    • Issue date Aug 8, 2023
    • Seoul Semiconductor Co., Ltd.
    • Masahiko Yamakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    White light source system
    • Patent number 11,430,771
    • Issue date Aug 30, 2022
    • SEOUL SEMICONDUCTOR CO., LTD.
    • Masahiko Yamakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    White light source system
    • Patent number 11,094,679
    • Issue date Aug 17, 2021
    • Kabushiki Kaisha Toshiba
    • Masahiko Yamakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    White light source system
    • Patent number 10,674,577
    • Issue date Jun 2, 2020
    • Kabushiki Kaisha Toshiba
    • Masahiko Yamakawa
    • F21 - LIGHTING
  • Information Patent Grant

    White light source and white light source system
    • Patent number 10,420,183
    • Issue date Sep 17, 2019
    • Kabushiki Kaisha Toshiba
    • Masahiko Yamakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    White light source system
    • Patent number 10,375,786
    • Issue date Aug 6, 2019
    • Kabushiki Kaisha Toshiba
    • Masahiko Yamakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    White light source system
    • Patent number 10,231,305
    • Issue date Mar 12, 2019
    • Kabushiki Kaisha Toshiba
    • Masahiko Yamakawa
    • F21 - LIGHTING

Patents Applicationslast 30 patents

  • Information Patent Application

    METHOD FOR USING WHITE LIGHT SOURCE, AND WHITE LIGHT SOURCE
    • Publication number 20240426439
    • Publication date Dec 26, 2024
    • Seoul Semiconductor Co., Ltd.
    • Masahiko YAMAKAWA
    • F21 - LIGHTING
  • Information Patent Application

    WHITE LIGHT SOURCE SYSTEM
    • Publication number 20240297160
    • Publication date Sep 5, 2024
    • SEOUL SEMICONDUCTOR CO., LTD.
    • Masahiko YAMAKAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    METHOD FOR USING WHITE LIGHT SOURCE, AND WHITE LIGHT SOURCE
    • Publication number 20240044459
    • Publication date Feb 8, 2024
    • Seoul Semiconductor Co., Ltd.
    • Masahiko YAMAKAWA
    • F21 - LIGHTING
  • Information Patent Application

    WHITE LIGHT SOURCE SYSTEM
    • Publication number 20230343758
    • Publication date Oct 26, 2023
    • SEOUL SEMICONDUCTOR CO., LTD.
    • Masahiko YAMAKAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    WHITE LIGHT SOURCE SYSTEM
    • Publication number 20230005889
    • Publication date Jan 5, 2023
    • SEOUL SEMICONDUCTOR CO., LTD.
    • Masahiko YAMAKAWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    WHITE LIGHT SOURCE SYSTEM
    • Publication number 20210242182
    • Publication date Aug 5, 2021
    • Kabushiki Kaisha Toshiba
    • Masahiko YAMAKAWA
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    WHITE LIGHT SOURCE SYSTEM
    • Publication number 20200253011
    • Publication date Aug 6, 2020
    • Kabushiki Kaisha Toshiba
    • Masahiko YAMAKAWA
    • F21 - LIGHTING
  • Information Patent Application

    WHITE LIGHT SOURCE SYSTEM
    • Publication number 20190306946
    • Publication date Oct 3, 2019
    • Kabushiki Kaisha Toshiba
    • Masahiko YAMAKAWA
    • F21 - LIGHTING
  • Information Patent Application

    WHITE LIGHT SOURCE SYSTEM
    • Publication number 20190159313
    • Publication date May 23, 2019
    • Kabushiki Kaisha Toshiba
    • Masahiko YAMAKAWA
    • F21 - LIGHTING
  • Information Patent Application

    WHITE LIGHT SOURCE SYSTEM
    • Publication number 20180139817
    • Publication date May 17, 2018
    • Kabushiki Kaisha Toshiba
    • Masahiko Yamakawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    WHITE LIGHT SOURCE AND WHITE LIGHT SOURCE SYSTEM
    • Publication number 20170238390
    • Publication date Aug 17, 2017
    • Kabushiki Kaisha Toshiba
    • Masahiko YAMAKAWA
    • F21 - LIGHTING