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Hiroaki Sugiyama

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Milling and classifying apparatus, collision mill, air classifier,...
    • Patent number 7,438,245
    • Issue date Oct 21, 2008
    • Ricoh Company, Ltd.
    • Masahiro Kawamoto
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Opening means for powder vessel
    • Patent number 4,520,695
    • Issue date Jun 4, 1985
    • Ricoh Company, Ltd.
    • Hiroaki Sugiyama
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Grant

    Threaded cap with inner plug
    • Patent number 4,394,923
    • Issue date Jul 26, 1983
    • Ricoh Co., Ltd.
    • Hiroaki Sugiyama
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Cap with supply stopper for use with containers
    • Patent number 4,164,307
    • Issue date Aug 14, 1979
    • Ricoh Company Limited
    • Masanaga Imamura
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Patents Applicationslast 30 patents