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Ryuji Sotoaka

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  • Ibaraki, JP
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    ETCHING LIQUID FOR ETCHING SILICON SUBSTRATE REAR SURFACE IN THROUG...
    • Publication number 20120225563
    • Publication date Sep 6, 2012
    • Mitsubishi Gas Chemical Company, Inc.
    • Ryuji Sotoaka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SILICON ETCHING SOLUTION AND ETCHING METHOD
    • Publication number 20120190210
    • Publication date Jul 26, 2012
    • Mitsubishi Gas Chemical Company, Inc.
    • Yoshiko Fujioto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    SILICON ETCHANT AND ETCHING METHOD
    • Publication number 20110171834
    • Publication date Jul 14, 2011
    • Mitsubishi Gas Chemical Company, Inc.
    • Kazuyoshi Yaguchi
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    PROCESS FOR CLEANING SEMICONDUCTOR ELEMENT
    • Publication number 20110146726
    • Publication date Jun 23, 2011
    • Mitsubishi Gas Chemical Company, Inc.
    • Keiichi Tanaka
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    SILICON ETCHING LIQUID AND ETCHING METHOD
    • Publication number 20110059619
    • Publication date Mar 10, 2011
    • Mitsubishi Gas Chemical Company, Inc.
    • Kazuyoshi Yaguchi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SILICON ETCHING LIQUID AND ETCHING METHOD
    • Publication number 20100248495
    • Publication date Sep 30, 2010
    • MITSUBISHI GAS CHEMINCAL COMPANY, INC.
    • Kazuyoshi Yaguchi
    • B81 - MICRO-STRUCTURAL TECHNOLOGY
  • Information Patent Application

    WET ETCHING METHOD AND WET ETCHING APPARATUS
    • Publication number 20090114619
    • Publication date May 7, 2009
    • MITSUBISHI GAS CHEMICAL COMPANY INC.
    • Ryuji Sotoaka
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    Substrate Cleaning Device and Cleaning Method Thereof
    • Publication number 20080047577
    • Publication date Feb 28, 2008
    • Hideto Goto
    • B08 - CLEANING
  • Information Patent Application

    Method for Oxidizing Substance and Oxidation Apparatus Therefor
    • Publication number 20070215454
    • Publication date Sep 20, 2007
    • Mitsubishi Gas Chemical Company, Inc.
    • Ryuji Sotoaka
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Cleaning method
    • Publication number 20020066465
    • Publication date Jun 6, 2002
    • Hideto Gotoh
    • C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
  • Information Patent Application

    Cleaning agent and cleaning method
    • Publication number 20020064963
    • Publication date May 30, 2002
    • Hideto Gotoh
    • C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...