TREA

Kazuaki Chiba

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Photomask blank and photomask
    • Patent number 8,012,654
    • Issue date Sep 6, 2011
    • Shin-Etsu Chemical Co., Ltd.
    • Hiroki Yoshikawa
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Photomask blank and photomask
    • Patent number 8,003,284
    • Issue date Aug 23, 2011
    • Shin-Etsu Chemical Co., Ltd.
    • Hiroki Yoshikawa
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Photomask blank and photomask making method
    • Patent number 7,989,124
    • Issue date Aug 2, 2011
    • Toppan Printing Co., Ltd.
    • Hiroki Yoshikawa
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Photomask blank and photomask making method
    • Patent number 7,767,367
    • Issue date Aug 3, 2010
    • Toppan Printing Co., Ltd.
    • Hiroki Yoshikawa
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Photomask blank and photomask
    • Patent number 7,767,366
    • Issue date Aug 3, 2010
    • Shin-Etsu Chemical Co., Ltd.
    • Hiroki Yoshikawa
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

  • Information Patent Application

    PHOTOMASK BLANK AND PHOTOMASK MAKING METHOD
    • Publication number 20100261099
    • Publication date Oct 14, 2010
    • Hiroki Yoshikawa
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    PHOTOMASK BLANK AND PHOTOMASK
    • Publication number 20100261100
    • Publication date Oct 14, 2010
    • Hiroki YOSHIKAWA
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    PHOTOMASK BLANK AND PHOTOMASK
    • Publication number 20100261101
    • Publication date Oct 14, 2010
    • Hiroki YOSHIKAWA
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    Photomask blank and photomask
    • Publication number 20070212618
    • Publication date Sep 13, 2007
    • Shin-Etsu Chemical Co., Ltd.
    • Hiroki Yoshikawa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    Photomask blank and photomask making method
    • Publication number 20070212619
    • Publication date Sep 13, 2007
    • Shin-Etsu Chemical Co., Ltd.
    • Hiroki YOSHIKAWA
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...