Patents by Inventor Tooru Ezaki

Tooru Ezaki 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: 6933657
    Abstract: A stacked electro-mechanical energy conversion element includes a plurality of layers having a circular shape each of which is formed of a material having an electro-mechanical energy conversion function and has a through-hole in the center thereof, a plurality of electrode portions formed at least on one surface of the layers and separated from each other by a plurality of first non-electrode portions, a plurality of wiring conductors which penetrate the plurality of layers and electrically connect electrode portions of the different layers, and a plurality of second non-electrode portions formed in the periphery of the wiring conductors so as to prevent the wiring conductors from being rendered conductive to the electrode portions, wherein the wiring conductors are formed at least on or in the vicinity of an edge of an outer diameter of each layer, and the electrode portions are formed over the edge of the outer diameter except for portions at which the second non-electrode portions are formed.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: August 23, 2005
    Assignees: Canon Kabushiki Kaisha, Taiheiyo Cement Corporation
    Inventors: Yutaka Maruyama, Nobuyuki Kojima, Tooru Ezaki
  • Publication number: 20020149301
    Abstract: A stacked electro-mechanical energy conversion element includes a plurality of layers having a circular shape each of which is formed of a material having an electro-mechanical energy conversion function and has a through-hole in the center thereof, a plurality of electrode portions formed at least on one surface of the layers and separated from each other by a plurality of first non-electrode portions, a plurality of wiring conductors which penetrate the plurality of layers and electrically connect electrode portions of the different layers, and a plurality of second non-electrode portions formed in the periphery of the wiring conductors so as to prevent the wiring conductors from being rendered conductive to the electrode portions, wherein the wiring conductors are formed at least on or in the vicinity of an edge of an outer diameter of each layer, and the electrode portions are formed over the edge of the outer diameter except for portions at which the second non-electrode portions are formed.
    Type: Application
    Filed: March 22, 2002
    Publication date: October 17, 2002
    Applicant: Canon Kabushiki Kaisha
    Inventors: Yutaka Maruyama, Nobuyuki Kojima, Tooru Ezaki