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Shoichi Yokoyama

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  • Shiga, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Heat exchanger
    • Patent number 6,390,183
    • Issue date May 21, 2002
    • Matsushita Electric Industrial Co. Ltd.
    • Osamu Aoyagi
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Finned heat exchanger
    • Patent number 6,227,289
    • Issue date May 8, 2001
    • Matsushita Electric Industrial Co., Ltd.
    • Shoichi Yokoyama
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Finned heat exchanger
    • Patent number 6,142,220
    • Issue date Nov 7, 2000
    • Matsushita Electric Industrial Co., Ltd.
    • Hitoshi Motegi
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Heat exchanger tube for an air-conditioning apparatus
    • Patent number 6,000,466
    • Issue date Dec 14, 1999
    • Matsushita Electric Industrial Co., Ltd.
    • Osamu Aoyagi
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Fin-tube heat exchanger
    • Patent number 5,207,270
    • Issue date May 4, 1993
    • Matsushita Electric Industrial Co., Ltd.
    • Shoichi Yokoyama
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Fin-tube heat exchanger
    • Patent number 5,203,403
    • Issue date Apr 20, 1993
    • Matsushita Electric Industrial Co., Ltd.
    • Shoichi Yokoyama
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Fin tube heat exchanger
    • Patent number 5,117,902
    • Issue date Jun 2, 1992
    • Matsushita Electric Industrial Co., Ltd.
    • Hisao Kusuhara
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Heat exchanger
    • Patent number 4,907,646
    • Issue date Mar 13, 1990
    • Matsushita Electric Industrial Co., Ltd.
    • Osamu Aoyagi
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Heat exchanger
    • Patent number 4,723,600
    • Issue date Feb 9, 1988
    • Matsushita Refrigeration Company
    • Shoichi Yokoyama
    • F28 - HEAT EXCHANGE IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    HEAT EXCHANGER
    • Publication number 20010003309
    • Publication date Jun 14, 2001
    • Stephen G. Adrian
    • OSAMU AOYAGI
    • F28 - HEAT EXCHANGE IN GENERAL