Patents by Inventor Junichi Hiyama

Junichi Hiyama 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).

  • Flat tubes for use with heat exchanger and manufacturing method thereof
    Patent number: 6431265
    Abstract: The height of a bead opposing a joint where side edges of a plate are to be joined is set to be smaller than the height of a bead which does not oppose the joint by the thickness of the plate. Further, lands are provided between the beads and protrude from either the tube surface or the tube surface toward the inside of the main tube unit, and flow gaps are formed through which the heat-exchange medium flows over the lands.
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: August 13, 2002
    Assignee: Calsonic Kansei Corporation
    Inventors: Masayoshi Shinhama, Junichi Hiyama, Hiroyuki Tamura, Shinya Kaneko, Enichi Ishiwa, Yoshihiro Sasaki, Yoshiaki Koga
  • Flat tubes for use with heat exchanger and manufacturing method thereof
    Publication number: 20010045277
    Abstract: The height of a bead opposing a joint where side edges of a plate are to be joined is set to be smaller than the height of a bead which does not oppose the joint by the thickness of the plate. Further, lands are provided between the beads and protrude from either the tube surface or the tube surface toward the inside of the main tube unit, and flow gaps are formed through which the heat-exchange medium flows over the lands.
    Type: Application
    Filed: July 5, 2001
    Publication date: November 29, 2001
    Inventors: Masayoshi Shinhama, Junichi Hiyama, Hiroyuki Tamura, Shinya Kaneko, Enichi Ishiwa, Yoshihiro Sasaki, Yoshiaki Koga
  • Flat tubes for use with heat exchanger and manufacturing method thereof
    Patent number: 6267177
    Abstract: The height of a bead opposing a joint where side edges of a plate are to be joined is set to be smaller than the height of a bead which does not oppose the joint by the thickness of the plate. Further, lands are provided between the beads and protrude from either the tube surface or the tube surface toward the inside of the main tube unit, and flow gaps are formed through which the heat-exchange medium flows over the lands.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: July 31, 2001
    Assignee: Calsonic Kansei Corporation
    Inventors: Masayoshi Shinhama, Junichi Hiyama, Hiroyuki Tamura, Shinya Kaneko, Enichi Ishiwa, Yoshihiro Sasaki, Yoshiaki Koga