Patents by Inventor Tsuneji Morohoshi

Tsuneji Morohoshi 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).

  • Brine cooling apparatus
    Patent number: 6532755
    Abstract: A brine cooling apparatus is provided which addresses an environmental problem by not contributing to global warming and can prevent brine from freezing within a heat exchanger. The apparatus is structured such that a screw compressor, a condenser, a main expansion valve and an evaporator are connected by a pipe so as to cool brine flowing through the evaporator. The refrigerant is an ammonia refrigerant, the evaporator is a plate type heat exchanger constructed by laying a plural sheets of plates, and capacity control means is provided in such a manner as to control a capacity of the screw compressor in accordance with the flow amount of the brine.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: March 18, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Yoshifumi Ichikawa, Tsuneji Morohoshi
  • Brine cooling apparatus
    Publication number: 20020134097
    Abstract: A brine cooling apparatus is provided which addresses an environmental problem by not contributing to global warming and can prevent brine from freezing within a heat exchanger. The apparatus is structured such that a screw compressor, a condenser, a main expansion valve and an evaporator are connected by a pipe so as to cool brine flowing through the evaporator. The refrigerant is an ammonia refrigerant, the evaporator is a plate type heat exchanger constructed by laying a plural sheets of plates, and capacity control means is provided in such a manner as to control a capacity of the screw compressor in accordance with the flow amount of the brine.
    Type: Application
    Filed: May 23, 2002
    Publication date: September 26, 2002
    Inventors: Yoshifumi Ichikawa, Tsuneji Morohoshi
  • Brine cooling apparatus
    Patent number: 6418749
    Abstract: A brine cooling apparatus is provided which addresses an environmental problem by not contributing to global warming and can prevent brine from freezing within a heat exchanger. The apparatus is structured such that a screw compressor, a condenser, a main expansion valve and an evaporator are connected by a pipe so as to cool brine flowing through the evaporator. The refrigerant is an ammonia refrigerant, the evaporator is a plate type heat exchanger constructed by laying a plural sheets of plates, and capacity control means is provided in such a manner as to control a capacity of the screw compressor in accordance with the flow amount of the brine.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: July 16, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Yoshifumi Ichikawa, Tsuneji Morohoshi
  • Brine cooling apparatus
    Publication number: 20010015075
    Abstract: A brine cooling apparatus is provided which addresses an environmental problem by not contributing to global warming and can prevent brine from freezing within a heat exchanger. The apparatus is structured such that a screw compressor, a condenser, a main expansion valve and an evaporator are connected by a pipe so as to cool brine flowing through the evaporator. The refrigerant is an ammonia refrigerant, the evaporator is a plate type heat exchanger constructed by laying a plural sheets of plates, and capacity control means is provided in such a manner as to control a capacity of the screw compressor in accordance with the flow amount of the brine.
    Type: Application
    Filed: April 30, 2001
    Publication date: August 23, 2001
    Inventors: Yoshifumi Ichikawa, Tsuneji Morohoshi
  • Brine cooling apparatus
    Patent number: 6253566
    Abstract: A brine cooling apparatus is provided which addresses to an environmental problem by not contributing to global warming and can prevent brine from freezing within a heat exchange. The apparatus is structured such that a screw compressor, a condenser, a main expansion valve and an evaporator are connected by a pipe so as to cool brine flowing through the evaporator. The refrigerant is an ammonia refrigerant, the evaporator is a plate type heat exchanger constructed by laying a plural sheets of plates, and capacity control means is provided in such a manner as to control a capacity of the screw compressor in accordance with the flow amount of the brine.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: July 3, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Yoshifumi Ichikawa, Tsuneji Morohoshi