Patents by Inventor Ikuo Kotaka

Ikuo Kotaka 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).

  • Patent number: 4928753
    Abstract: A heat pipe apparatus incorporated in a heat exchanger comprises an evaporative pipe group disposed within a flow of a heating fluid, a condenser pipe group located away from the evaporative pipe group, a passage for connecting both pipe groups and for circulating therethrough a working medium, a single passage branching off from the connecting passage between the lower header of the condenser pipe group and the evaporative pipe group, and a second condenser pipe group having its lower header connected to the single passage and its upper header connected to a separator for non-condensible gas. This arrangement provides an improved removal of non-condensible gases.
    Type: Grant
    Filed: May 19, 1989
    Date of Patent: May 29, 1990
    Assignee: Babcock-Hitachi Kabushiki Kaisha
    Inventor: Ikuo Kotaka
  • Patent number: 4616697
    Abstract: A heat pipe apparatus incorporated in a heat exchanger comprises an evaporative pipe group disposed within a flow of a heating fluid, a condenser pipe group located away from the evaporative pipe group, a passage for connecting both pipe groups and for circulating therethrough a working medium, an another passage branching off from the connecting passage, and at least one another condenser pipe group associated with the another passage. The condenser pipe group and the another condenser pipe group are disposed within two flows of fluid to be heated so as to heat them.
    Type: Grant
    Filed: June 20, 1984
    Date of Patent: October 14, 1986
    Assignee: Babcock-Hitachi Kabushiki Kaisha
    Inventor: Ikuo Kotaka
  • Patent number: 4573524
    Abstract: A heat pipe apparatus incorporated in a heat exchanger comprises an evaporative pipe group disposed within a flow of a heating fluid, a condenser pipe group located away from the evaporative pipe group, a passage for connecting both pipe groups and for circulating therethrough a working medium, another passage branching off from the connecting passage, and at least one other condenser pipe group associated with the other passage. The condenser pipe group and the other condenser pipe group are disposed within two flows of fluid to be heated so as to heat them.
    Type: Grant
    Filed: April 30, 1985
    Date of Patent: March 4, 1986
    Assignee: Babcock-Hitachi Kabushiki Kaisha
    Inventor: Ikuo Kotaka