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Hachiro Koma

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Patents Grantslast 30 patents

  • Information Patent Grant

    Fin-tube type heat exchanger
    • Patent number 5,170,842
    • Issue date Dec 15, 1992
    • Matsushita Refrigeration Company
    • Kaoru Kato
    • 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

    Fin tube heat exchanger
    • Patent number 4,832,117
    • Issue date May 23, 1989
    • Matsushita Refrigeration Company
    • Kaoru Kato
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Method of manufacturing fin-tube heat exchangers
    • Patent number 4,625,378
    • Issue date Dec 2, 1986
    • Matsushita Refrigeration Company
    • Satoshi Tanno
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR