TREA

Masao Wakai

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  • Kasugai, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ventilator
    • Patent number 5,326,317
    • Issue date Jul 5, 1994
    • Matsushita Seiko Co., Ltd.
    • Tetsuo Ishizu
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Method for manufacturing a heat exchanger
    • Patent number 4,603,460
    • Issue date Aug 5, 1986
    • Matsushita Electric Industrial Co., Ltd.
    • Nobuyuki Yano
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Heat exchanger apparatus
    • Patent number 4,574,872
    • Issue date Mar 11, 1986
    • Matsushita Electric Industrial Co., Ltd.
    • Nobuyuki Yano
    • F24 - HEATING RANGES VENTILATING