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Akimichi Watanabe

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  • Isesaki-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Heat exchangers
    • Patent number 7,530,387
    • Issue date May 12, 2009
    • Sanden Corporation
    • Akimichi Watanabe
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Heat exchangers
    • Patent number 6,945,321
    • Issue date Sep 20, 2005
    • Sanden Corporation
    • Kazuki Hosoya
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Heat exchanger having an improved pipe connecting structure
    • Patent number 6,543,530
    • Issue date Apr 8, 2003
    • Sanden Corporation
    • Akimichi Watanabe
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Heat exchanger
    • Patent number 6,257,325
    • Issue date Jul 10, 2001
    • Sanden Corporation
    • Akimichi Watanabe
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Heat exchanger and method for manufacturing the same
    • Patent number 6,061,904
    • Issue date May 16, 2000
    • Sanden Corporation
    • Akimichi Watanabe
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Header of heat exchanger
    • Patent number 6,035,931
    • Issue date Mar 14, 2000
    • Sanden Corporation
    • Hirotaka Kado
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Heat exchanger
    • Patent number 5,787,973
    • Issue date Aug 4, 1998
    • Sanden Corporation
    • Hirotaka Kado
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Heat exchanger and method for manufacturing the same
    • Patent number 5,785,119
    • Issue date Jul 28, 1998
    • Sanden Corporation
    • Akimichi Watanabe
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents