Patents by Inventor Shigeo Nonaka

Shigeo Nonaka 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).

  • Leishmaniasis remedy containing glucopyranose derivative as the active ingredient
    Patent number: 6444648
    Abstract: A leishmaniasis preventing and/or treating agent having 2-deoxy-2-[(3S)-(9-phenylnonanoyloxy)tetradecanoyl]amino-3-O-(9-phenylnonanoyl)-4-O-sulfo-&agr;-D-glucopyranose represented by a formula (I) or a non-toxic salt thereof as an effective ingredient. 2-deoxy-2-[(3S)-(9-phenylnonanoyloxy)tetradecanoyl]amino-3-O-(9-phenylnomanoyl)-4-O-sulfo-&agr;-D-glucopyranose represented by a formula (I) or a non-toxic salts effectively functions to prevent and/or treat leishmaniasis, and is a highly safe compound.
    Type: Grant
    Filed: July 17, 2000
    Date of Patent: September 3, 2002
    Assignee: University of the Ryukyu
    Inventor: Shigeo Nonaka
  • Method for producing heat sink and heat sink thus produced
    Patent number: 4747450
    Abstract: In a heat sink for semiconductor elements and the like, a pipe made of a heat-conductive material such as copper, aluminum and the like is bent at a middle portion thereof and wound such that a forward flow passage and a return flow passage for a liquid coolant are both formed into a spiral shape with the bent portion held at the center of the spiral.
    Type: Grant
    Filed: September 18, 1986
    Date of Patent: May 31, 1988
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroo Ikegame, Shigeo Nonaka, Takuro Ito, Toshiaki Matsumoto