TREA

Ryoji TSUDA

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  • Fujisawa, 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 including LED and phosphors
    • Patent number 11,563,155
    • Issue date Jan 24, 2023
    • Seoul Semiconductor Co., Ltd.
    • Tatsunori Itoga
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    White light source including LED and phosphors
    • Patent number 10,957,826
    • Issue date Mar 23, 2021
    • Kabushiki Kaisha Toshiba
    • Tatsunori Itoga
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    White light source system
    • Patent number 10,473,274
    • Issue date Nov 12, 2019
    • Kabushiki Kaisha Toshiba
    • Masahiko Yamakawa
    • F21 - LIGHTING
  • Information Patent Grant

    Light emitting device and LED light bulb
    • Patent number 10,368,408
    • Issue date Jul 30, 2019
    • Toshiba Materials Co., Ltd.
    • Hiroyasu Kondo
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Light emitting device and LED light bulb
    • Patent number 10,368,409
    • Issue date Jul 30, 2019
    • Toshiba Materials Co., Ltd.
    • Hiroyasu Kondo
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Lighting device
    • Patent number 10,274,185
    • Issue date Apr 30, 2019
    • Kabushiki Kaisha Toshiba
    • Mitsuaki Kato
    • F21 - LIGHTING
  • Information Patent Grant

    Lighting apparatus
    • Patent number 10,107,457
    • Issue date Oct 23, 2018
    • Kabushiki Kaisha Toshiba
    • Hiroshi Ohno
    • F21 - LIGHTING
  • Information Patent Grant

    Light-emitting diode lamp
    • Patent number D765275
    • Issue date Aug 30, 2016
    • Kabushiki Kaisha Toshiba
    • Hiroshi Ohno
    • D26 - Lighting

Patents Applicationslast 30 patents

  • 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 INCLUDING LED AND PHOSPHORS
    • Publication number 20230163257
    • Publication date May 25, 2023
    • Seoul Semiconductor Co., Ltd.
    • Tatsunori ITOGA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    WHITE LIGHT SOURCE INCLUDING LED AND PHOSPHORS
    • Publication number 20210151638
    • Publication date May 20, 2021
    • Kabushiki Kaisha Toshiba
    • Tatsunori ITOGA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    WHITE LIGHT SOURCE
    • Publication number 20190088833
    • Publication date Mar 21, 2019
    • Kabushiki Kaisha Toshiba
    • Tatsunori ITOGA
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    WHITE LIGHT SOURCE SYSTEM
    • Publication number 20180135813
    • Publication date May 17, 2018
    • Kabushiki Kaisha Toshiba
    • Masahiko YAMAKAWA
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    LIGHT EMITTING DEVICE AND LED LIGHT BULB
    • Publication number 20180049285
    • Publication date Feb 15, 2018
    • Toshiba Materials Co., Ltd.
    • Hiroyasu Kondo
    • F21 - LIGHTING
  • Information Patent Application

    LIGHTING APPARATUS
    • Publication number 20170211749
    • Publication date Jul 27, 2017
    • KABUSHIKI KAISHA TOSHIBA
    • Hiroshi OHNO
    • F21 - LIGHTING
  • Information Patent Application

    OPTICAL ELEMENT AND ILLUMINATION APPARATUS
    • Publication number 20170167666
    • Publication date Jun 15, 2017
    • KABUSHIKI KAISHA TOSHIBA
    • Hiroshi OHNO
    • F21 - LIGHTING
  • Information Patent Application

    LIGHT EMITTING DEVICE AND LED LIGHT BULB
    • Publication number 20170048941
    • Publication date Feb 16, 2017
    • Toshiba Materials Co., Ltd.
    • Hiroyasu KONDO
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    LIGHTING DEVICE
    • Publication number 20160377278
    • Publication date Dec 29, 2016
    • Kabushiki Kaisha Toshiba
    • Mitsuaki KATO
    • F21 - LIGHTING