Patents by Inventor Kakuei Matsubara

Kakuei Matsubara 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).

  • Clathrate Compounds, Thermoelectric Conversion Elements, and Methods For Producing the Same
    Publication number: 20080216884
    Abstract: BaAuGe, BaAuGaGe, BaPtGe, BaPdGe, BaPdGaGe, BaPdGaSi, BaPtGaSi, BaCuGaGe, and BaAgGaGe clathrate compounds, and thermoelectric conversion element comprising the clathrate compounds. Methods for producing thermoelectric conversion elements are also provided, comprising melting, heat-treating, particle-forming, and sintering processes.
    Type: Application
    Filed: January 24, 2005
    Publication date: September 11, 2008
    Inventors: Yasufumi Shibata, Hiroaki Anno, Kakuei Matsubara
  • Optical control element
    Patent number: 4789500
    Abstract: An optical control element is disclosed which is capable of accomplishing the simplifying, small-sizing and lightening of the structure. The optical control element comprises a substrate exhibiting both an optical function and a magnetic function and a Cd.sub.1-x Mn.sub.x Te directly deposited on the substrate.
    Type: Grant
    Filed: March 28, 1986
    Date of Patent: December 6, 1988
    Assignee: Futaba Denshi Kogyo Kabushiki Kaisha
    Inventors: Kiyoshi Morimoto, Toshinori Takagi, Kakuei Matsubara
  • Thermoelectric converter element
    Patent number: 4443650
    Abstract: The disclosed thermoelectric converter element includes at least one member made of thermoelectric substance whose crystal structure is so controlled that its crystallographic axis is directed to a preferred orientation which is different from the direction of a thermoelectric current therethrough.
    Type: Grant
    Filed: April 16, 1982
    Date of Patent: April 17, 1984
    Assignee: Kyoto University
    Inventors: Toshinori Takagi, Kakuei Matsubara