Patents by Inventor Masatsugu Sugawara

Masatsugu Sugawara 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).

  • Multi-flow type heat exchanger
    Publication number: 20020153131
    Abstract: A heat exchanger of the multi-flow type is provided with baffle members which are adapted to impart a zigzagging flow to the heat-exchange fluid in motion inside a flat tube and define, in conjunction with the inner wall of the flat tube, a flow path of a cross-sectional area having an equivalent diameter in the range of 0.4 to 1.5 mm. This heat exchanger excels in heat exchange ability and in facility of manufacture and assemblage.
    Type: Application
    Filed: June 10, 2002
    Publication date: October 24, 2002
    Applicant: Calsonic Kansei Corporation
    Inventors: Masatsugu Sugawara, Kazuhito Baba, Toshiaki Yamamoto, Tsutomu Sunaga
  • Multi-flow type heat exchanger
    Publication number: 20010000879
    Abstract: A heat exchanger of the multi-flow type is provided with baffle members which are adapted to impart a zigzagging flow to the heat-exchange fluid in motion inside a flat tube and define, in conjunction with the inner wall of the flat tube, a flow path of a cross-sectional area having an equivalent diameter in the range of 0.4 to 1.5 mm. This heat exchanger excels in heat exchange ability and in facility of manufacture and assemblage.
    Type: Application
    Filed: December 27, 2000
    Publication date: May 10, 2001
    Inventors: Masatsugu Sugawara, Kazuhito Baba, Toshiaki Yamamoto, Tsutomu Sunaga
  • Multi-flow type heat exchanger
    Patent number: 5560425
    Abstract: A heat exchanger of the multi-flow type is provided with baffle members which are adapted to impart a zigzagging flow to the heat-exchange fluid in motion inside a flat tube and define, in conjunction with the inner wall of the flat tube, a flow path of a cross-sectional area having an equivalent diameter in the range of 0.4 to 1.5 mm. This heat exchanger excels in heat exchange ability and in facility of manufacture and assemblage.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: October 1, 1996
    Assignee: Calsonic Corporation
    Inventors: Masatsugu Sugawara, Kazuhito Baba, Toshiaki Yamamoto, Tsutomu Sunaga