Patents by Inventor Ryuusuke Tsuyoshi

Ryuusuke Tsuyoshi 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).

  • Laminated piezoelectric device
    Patent number: 7656077
    Abstract: A laminated piezoelectric device obtained by alternately laminating the piezoelectric layers containing Pb and the conducting layers containing palladium as a conducting component, wherein the piezoelectric layer formed between the two conducting layers has layer regions where Pb and Pd are mixed together in the interfacial portions thereof relative to the conducting layers, the layer regions having a thickness of not larger than 3% of the thickness of the piezoelectric layer. The laminated piezoelectric device is formed by co-firing the Pb-containing piezoelectric layers and the palladium (Pd)-containing layers, the piezoelectric layers therein having a large insulation resistance and good piezoelectric characteristics.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: February 2, 2010
    Assignee: Kyocera Corporation
    Inventors: Takaaki Hira, Takeshi Okamura, Masaki Terazono, Hirotaka Tsuyoshi, Ryuusuke Tsuyoshi, legal representative, Katsushi Sakaue
  • Laminated Piezoelectric Device
    Publication number: 20070209173
    Abstract: A laminated piezoelectric device obtained by alternately laminating the piezoelectric layers containing Pb and the conducting layers containing palladium as a conducting component, wherein the piezoelectric layer formed between the two conducting layers has layer regions where Pb and Pd are mixed together in the interfacial portions thereof relative to the conducting layers, the layer regions having a thickness of not larger than 3% of the thickness of the piezoelectric layer. The laminated piezoelectric device is formed by co-firing the Pb-containing piezoelectric layers and the palladium (Pd)-containing layers, the piezoelectric layers therein having a large insulation resistance and good piezoelectric characteristics.
    Type: Application
    Filed: December 17, 2004
    Publication date: September 13, 2007
    Applicant: KYOCERA CORPORATION
    Inventors: Takaaki Hira, Takeshi Okamura, Masaki Terazono, Hirotaka Tsuyoshi, Ryuusuke Tsuyoshi, Katsushi Sakaue