TREA

Masakazu Sano

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Manufacturing method of silicon wafer
    • Patent number 7,563,319
    • Issue date Jul 21, 2009
    • Sumitomo Mitsubishi Silicon Corporation
    • Shigeru Umeno
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    PURIFICATION DEVICE
    • Publication number 20180291546
    • Publication date Oct 11, 2018
    • QINGDAO HAIER WASHING MACHINE CO., LTD.
    • Katsumi OE
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Application

    Manufacturing method of silicon wafer
    • Publication number 20050229842
    • Publication date Oct 20, 2005
    • Shigeru Umeno
    • C30 - CRYSTAL GROWTH