Patents by Inventor Tamami Fukuyasu

Tamami Fukuyasu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Expansion valve, heat pump type refrigeration cycle apparatus, and air handling unit
    Patent number: 8157184
    Abstract: A first expansion valve is provided in an outdoor unit, and a second expansion valve is provided in an indoor unit. A pipe line connects a first joint pipe of the first expansion valve and a second joint pipe of the second expansion valve. When a refrigerant flows in from the second joint pipe and flows out from the first joint pipe, the first and second expansion valves are in a full open state due to pressure of the refrigerant. When the refrigerant flows in from the first joint pipe and flows out from the second joint pipe, the first and second expansion valves are in semi-closed state (flow rate controlling state). In a cooling mode, the second expansion valve expands the refrigerant just before an indoor heat exchanger, and in a heating mode, the first expansion valve expands the refrigerant just before an outdoor heat exchanger. In both heating and cooling mode, a large amount of refrigerant flows through the pipe line to reduce pressure loss.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: April 17, 2012
    Assignee: Kabushiki Kaisha Saginomiya Seisakusho
    Inventors: Takahito Hayashi, Hideki Sekiguchi, Yutaka Kaneko, Tamami Fukuyasu, Takashi Hirakawa
  • EXPANSION VALVE, HEAT PUMP TYPE REFRIGERATION CYCLE APPARATUS, AND AIR HANDLING UNIT
    Publication number: 20110120161
    Abstract: A first expansion valve is provided in an outdoor unit, and a second expansion valve is provided in an indoor unit. A pipe line connects a first joint pipe of the first expansion valve and a second joint pipe of the second expansion valve. When a refrigerant flows in from the second joint pipe and flows out from the first joint pipe, the first and second expansion valves are in a full open state due to pressure of the refrigerant. When the refrigerant flows in from the first joint pipe and flows out from the second joint pipe, the first and second expansion valves are in semi-closed state (flow rate controlling state). In a cooling mode, the second expansion valve expands the refrigerant just before an indoor heat exchanger, and in a heating mode, the first expansion valve expands the refrigerant just before an outdoor heat exchanger. In both heating and cooling mode, a large amount of refrigerant flows through the pipe line to reduce pressure loss.
    Type: Application
    Filed: December 1, 2010
    Publication date: May 26, 2011
    Applicant: Kabushiki Kaisha Saginomiya Seisakusho
    Inventors: Takahito Hayashi, Hideki Sekiguchi, Yutaka Kaneko, Tamami Fukuyasu, Takashi Hirakawa