Patents by Inventor Shozo Yamanaka

Shozo Yamanaka 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: 6710238
    Abstract: A thermoelectric material having a high Seeback coefficient and a large power factor and excellent in shock resistance, thermal strain resistance, and formability, and a thermoelectric element are disclosed. The thermoelectric material and thermoelectric element is composed of a multilayered body made up of a laminar body of a semimetal, a metal, or a synthetic resin and a laminar body of a semimetal. The average thickness of the laminar bodies ranges from 0.3 nm to 1000 nm. Embodiments of the combination of the laminar bodies are Bi—Al, Bi-polyamide series resin, and Ag—Fe. Such a multilayered body is manufactured by forming an initial multilayered body composed of all the types of laminar bodies constituting the multilayered body and rolling or uniaxially pressing a stack of such initial multilayered bodies.
    Type: Grant
    Filed: December 2, 2001
    Date of Patent: March 23, 2004
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Hideo Shingu, Keiichi Ishihara, Nobuyoshi Imaoka, Isao Morimoto, Shozo Yamanaka