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Genkichi Umeha

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Iron-base anti-wear sintered alloy member
    • Patent number 4,863,513
    • Issue date Sep 5, 1989
    • Genkichi Umeha
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Composite camshaft and method of making the same
    • Patent number 4,732,310
    • Issue date Mar 22, 1988
    • Nippon Piston Ring Co., Ltd.
    • Genkichi Umeha
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Shaft member
    • Patent number 4,665,766
    • Issue date May 19, 1987
    • Nippon Piston Ring Co., Ltd.
    • Genkichi Umeha
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Method of making a cam shaft
    • Patent number 4,649,011
    • Issue date Mar 10, 1987
    • Nippon Piston Ring Co., Ltd.
    • Genkichi Umeha
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Cam shaft and method of manufacture
    • Patent number 4,644,912
    • Issue date Feb 24, 1987
    • Nippon Piston Ring Co., Ltd.
    • Genkichi Umeha
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Camshaft with lubricating oil supplying function
    • Patent number 4,615,310
    • Issue date Oct 7, 1986
    • Nippon Piston Ring Co., Ltd.
    • Genkichi Umeha
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Method of manufacturing a hollow cam shaft
    • Patent number 4,612,695
    • Issue date Sep 23, 1986
    • Nippon Piston Ring Co., Ltd.
    • Genkichi Umeha
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method for manufacturing camshaft
    • Patent number 4,595,556
    • Issue date Jun 17, 1986
    • Nippon Piston Ring Co., Ltd.
    • Genkichi Umeha
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Method for manufacturing camshaft
    • Patent number 4,556,532
    • Issue date Dec 3, 1985
    • Nippon Piston Ring Co., Ltd.
    • Genkichi Umeha
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Steel floating seal with remelted deposit-alloyed wear surfaces
    • Patent number 4,513,977
    • Issue date Apr 30, 1985
    • Nippon Piston Ring Co., Ltd.
    • Genkichi Umeha
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Oil scraper ring with controlled gap arrangement
    • Patent number 4,473,232
    • Issue date Sep 25, 1984
    • Nippon Piston Ring Co., Ltd.
    • Genkichi Umeha
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...