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Yoshiaki Takagi

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  • Saitama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    NO.sub.x sensor for exhaust gas, and process for producing the same
    • Patent number 5,965,802
    • Issue date Oct 12, 1999
    • Honda Giken Kogyo Kabushiki Kaisha
    • Masaaki Nanaumi
    • G01 - MEASURING TESTING
  • Information Patent Grant

    NOx sensor for exhaust gas and method for producing same
    • Patent number 5,800,783
    • Issue date Sep 1, 1998
    • Honda Giken Kogyo Kabushiki Kaisha
    • Masaaki Nanaumi
    • G01 - MEASURING TESTING
  • Information Patent Grant

    High cold-forging electromagnetic stainless steel
    • Patent number 5,190,722
    • Issue date Mar 2, 1993
    • Tohoku Special Steel Works Limited
    • Yoshinobu Saito
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Alloys for exhaust valve
    • Patent number 4,871,512
    • Issue date Oct 3, 1989
    • Daido Tokushuko K.K.
    • Yoshiaki Takagi
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Wear-resistant, sintered iron alloy and process for producing the same
    • Patent number 4,702,771
    • Issue date Oct 27, 1987
    • Hitachi Powdered Metals Co., Ltd.
    • Yoshiaki Takagi
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Alloys for exhaust valves
    • Patent number 4,631,169
    • Issue date Dec 23, 1986
    • Daido Tokushuko Kabushiki Kaisha
    • Susumu Isobe
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Sintered alloy for valve seat
    • Patent number 4,505,988
    • Issue date Mar 19, 1985
    • Honda Piston Ring Co., Ltd.
    • Shigeru Urano
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Dual-layer sintered valve seat ring
    • Patent number 4,424,953
    • Issue date Jan 10, 1984
    • Honda Giken Kogyo Kabushiki Kaisha
    • Yoshiaki Takagi
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Oxidizing catalyzer
    • Patent number 4,116,884
    • Issue date Sep 26, 1978
    • Honda Giken Kogyo Kabushiki Kaisha
    • Tadayoshi Hayashi
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL