TREA

Shigetoshi Akiyama

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  • Fuji, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Air conditioning unit
    • Patent number 5,934,090
    • Issue date Aug 10, 1999
    • Tokyo Gas Co., Ltd.
    • Tsutomu Ozu
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Low-NO.sub.x gas burner
    • Patent number 5,368,476
    • Issue date Nov 29, 1994
    • Tokyo Gas Company Ltd.
    • Tatsuya Sugahara
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    Burner low in the generation of nitrogen oxides and a small combust...
    • Patent number 5,318,438
    • Issue date Jun 7, 1994
    • Tokyo Gas Company Limited
    • Tatsuya Sugahara
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES