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Masahiro Ishikawa

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Vacuum cleaner
    • Patent number 6,101,667
    • Issue date Aug 15, 2000
    • Yashima Electric Co., Ltd.
    • Masahiro Ishikawa
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Generator system for a vacuum cleaner
    • Patent number 5,572,767
    • Issue date Nov 12, 1996
    • Yashima Electric Co., Ltd.
    • Masahiro Ishikawa
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Vacuum cleaner
    • Patent number 5,404,612
    • Issue date Apr 11, 1995
    • Yashima Electric Co., Ltd.
    • Masahiro Ishikawa
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...