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Jumei Harada

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  • Kodaira, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Preparation of thread-wound golf balls
    • Patent number 5,194,191
    • Issue date Mar 16, 1993
    • Bridgestone Corporation
    • Jun Nomura
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Rotary roll extruder
    • Patent number 4,911,631
    • Issue date Mar 27, 1990
    • Bridgestone Corporation
    • Jumei Harada
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Rubber-like material kneading apparatus
    • Patent number 4,871,259
    • Issue date Oct 3, 1989
    • Bridgestone Corporation
    • Jumei Harada
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Variable contour rubber extruder
    • Patent number 4,744,745
    • Issue date May 17, 1988
    • Bridgestone Corporation
    • Jumei Harada
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Rotary roll-type rubber extruder
    • Patent number 4,576,563
    • Issue date Mar 18, 1986
    • Bridgestone Corporation
    • Jumei Harada
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Adjustable extrusion die assembly
    • Patent number 4,470,790
    • Issue date Sep 11, 1984
    • Bridgestone Tire Company Limited
    • Jumei Harada
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL