Patents by Inventor Tomoko Hishida

Tomoko Hishida 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).

  • Sintered oxide compact and circuit board using same
    Patent number: 9136033
    Abstract: Provided is a sintered oxide compact that has high electric conductivity and a small B-value (temperature coefficient), and is suitable for use as an electrically conductive material, and a circuit board that uses the sintered oxide compact. The sintered oxide compact is represented by a composition formula: REaCobNicOx (where RE represents a rare earth element, a+b+c=1, and 1.3?x?1.7), the sintered oxide compact includes a perovskite phase with a perovskite-type oxide crystal structure, and the a, b, and c satisfy the following relationships: 0.459?a?0.535, 0.200?b?0.475, and 0.025?c?0.300.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: September 15, 2015
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Hisashi Kozuka, Tomoko Hishida, Hideto Yamada, Kazushige Ohbayashi
  • SINTERED OXIDE COMPACT AND CIRCUIT BOARD USING SAME
    Publication number: 20150099142
    Abstract: Provided is a sintered oxide compact that has high electric conductivity and a small B-value (temperature coefficient), and is suitable for use as an electrically conductive material, and a circuit board that uses the sintered oxide compact. The sintered oxide compact is represented by a composition formula: REaCobNicOx (where RE represents a rare earth element, a+b+c=1, and 1.3?x?1.7), the sintered oxide compact includes a perovskite phase with a perovskite-type oxide crystal structure, and the a, b, and c satisfy the following relationships: 0.459?a?0.535, 0.200?b?0.475, and 0.025?c?0.300.
    Type: Application
    Filed: April 2, 2013
    Publication date: April 9, 2015
    Inventors: Hisashi Kozuka, Tomoko Hishida, Hideto Yamada, Kazushige Ohbayashi