TREA

Akira Kawahara

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Aluminum alloy fin material for brazing
    • Patent number 7,850,796
    • Issue date Dec 14, 2010
    • Denso Corporation
    • Kyoji Inukai
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method for manufacturing a fin material for brazing
    • Patent number 6,660,108
    • Issue date Dec 9, 2003
    • The Furukawa Electric Co., Ltd.
    • Takeyoshi Doko
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method for manufacturing an aluminum alloy fin material for brazing
    • Patent number 6,620,265
    • Issue date Sep 16, 2003
    • The Furukawa Electric Co., Ltd.
    • Akira Kawahara
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Fin material for brazing
    • Patent number 6,471,794
    • Issue date Oct 29, 2002
    • The Furukawa Electric Co., Ltd.
    • Takeyoshi Doko
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

  • Information Patent Application

    Aluminum alloy fin material for brazing
    • Publication number 20090053549
    • Publication date Feb 26, 2009
    • DENSO CORPORATION
    • Kyoji Inukai
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    Method for manufacturing an aluminum alloy fin material for brazing
    • Publication number 20030015573
    • Publication date Jan 23, 2003
    • Akira Kawahara
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    Method for manufacturing a fin material for brazing
    • Publication number 20020004977
    • Publication date Jan 17, 2002
    • Takeyoshi Doko
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    Fin material for brazing
    • Publication number 20020000270
    • Publication date Jan 3, 2002
    • Takeyoshi Doko
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...