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Yorishige Maeda

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Patents Grantslast 30 patents

  • Information Patent Grant

    Internal combustion engine and its piston
    • Patent number 5,123,386
    • Issue date Jun 23, 1992
    • Toyota Jidosha Kabushiki Kaisha
    • Nobuaki Wakita
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Composite oil-ring
    • Patent number 5,039,116
    • Issue date Aug 13, 1991
    • Toyota Jidosha Kabushiki Kaisha
    • Yorishige Maeda
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Steel having good wear resistance
    • Patent number 4,985,092
    • Issue date Jan 15, 1991
    • Aichi Steel Works, Limited
    • Hiroshi Kaede
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Steel having good wear resistance
    • Patent number 4,966,751
    • Issue date Oct 30, 1990
    • Aichi Steel Works, Limited
    • Hiroshi Kaede
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Aluminum alloy piston and piston-ring assembly treated to suppress...
    • Patent number 4,899,702
    • Issue date Feb 13, 1990
    • Toyota Jidosha Kabushiki Kaisha
    • Norio Sasaki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Three-piece oil-ring with a slot
    • Patent number 4,798,391
    • Issue date Jan 17, 1989
    • Toyota Jidosha Kabushiki Kaisha
    • Yorishige Maeda
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Light metal alloy piston
    • Patent number 4,730,548
    • Issue date Mar 15, 1988
    • Toyota Jidosha Kabushiki Kaisha
    • Yorishige Maeda
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Oil ring structure having reduced rigidity
    • Patent number 4,722,535
    • Issue date Feb 2, 1988
    • Toyota Jidosha Kabushiki Kaisha
    • Yorishige Maeda
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Light metal alloy piston
    • Patent number 4,669,367
    • Issue date Jun 2, 1987
    • Toyota Jidosha Kabushiki Kaisha
    • Atsuo Tanaka
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Three-piece oil-ring with an inward protrusion
    • Patent number 4,659,093
    • Issue date Apr 21, 1987
    • Toyota Jidosha Kabushiki Kaisha
    • Yorishige Maeda
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Oil-ring including two rail rings and an expander-spacer ring which...
    • Patent number 4,548,416
    • Issue date Oct 22, 1985
    • Toyota Jidosha Kabushiki Kaisha
    • Yorishige Maeda
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Flow control device of a helically-shaped intake port
    • Patent number 4,467,749
    • Issue date Aug 28, 1984
    • Toyota Jidosha Kabushiki Kaisha
    • Yorishige Maeda
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Cylinder head, ports, and piston configuration
    • Patent number 4,344,407
    • Issue date Aug 17, 1982
    • Toyota Jidosha Kogyo Kabushiki Kaisha
    • Masami Konishi
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Bearing structure for a cam shaft in internal combustion engines
    • Patent number 4,199,202
    • Issue date Apr 22, 1980
    • Toyota Jidosha Kogyo Kabushiki Kaisha
    • Yorishige Maeda
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES