TREA

Kohichi Hasegawa

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  • Tachikawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electric vacuum cleaner
    • Patent number D312901
    • Issue date Dec 11, 1990
    • Hitachi, Ltd.
    • Tomoyuki Miyata
    • D32 - Washing, cleaning, or drying machine
  • Information Patent Grant

    Electric vacuum cleaner
    • Patent number D302878
    • Issue date Aug 15, 1989
    • Hitachi, Ltd.
    • Shigetaka Kimura
    • D32 - Washing, cleaning, or drying machine