TREA

Yasuo Takeishi

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Gas burner
    • Patent number 5,224,855
    • Issue date Jul 6, 1993
    • Osaka Gas Co., Ltd.
    • Hajime Toyonaga
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    Gas burner
    • Patent number 5,073,106
    • Issue date Dec 17, 1991
    • Osaka Gas Co., Ltd.
    • Hajime Toyonaga
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    Surface combustion type burner with air supply entirely as primary air
    • Patent number 4,480,988
    • Issue date Nov 6, 1984
    • Osaka Gas Company, Limited
    • Makoto Okabayashi
    • F24 - HEATING RANGES VENTILATING