Patents by Inventor Yuji Ido

Yuji Ido 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).

  • Heat pipe
    Patent number: 4846263
    Abstract: A heat pipe in accordance with the present invention includes an outer pipe and an inner pipe which is inserted to the outer pipe, coolant return routes with relatively large cross-sectional area are provided on the inner side of the outer pipe from the evaporation section to the condensation section, grooves with relatively small cross-sectional area are provided on the inner surface of the inner pipe from the evaporation section to the condensation section, and connective openings are provided on the inner pipe for connecting through the grooves to the coolant return routes.
    Type: Grant
    Filed: December 1, 1988
    Date of Patent: July 11, 1989
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshio Miyazaki, Yuji Ido
  • Heat pipe
    Patent number: 4815529
    Abstract: A heat pipe in accordance with the present invention includes an outer pipe and an inner pipe which is inserted to the outer pipe, coolant return routes with relatively large cross-sectional area are provided on the inner side of the outer pipe from the evaporation section to the condensation section, grooves with relatively small cross-sectional area are provided on the inner surface of the inner pipe from the evaporation section to the condensation section, and connective openings are provided on the inner pipe for connecting through the grooves to the coolant return routes.
    Type: Grant
    Filed: May 13, 1988
    Date of Patent: March 28, 1989
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshio Miyazaki, Yuji Ido