Patents by Inventor Wang Yucong

Wang Yucong 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).

  • Alumina/zirconia ceramics and method of producing the same
    Patent number: 7399722
    Abstract: Composite ceramics having a high strength, a high toughness and an excellent abrasion resistance, and a method of producing the same. The composite ceramics comprises 10 to 30 mass % of a zirconia crystal phase including Ce-stabilized zirconia crystal particles which contain CeO2 in an amount of 9 to 12 mol % and Y-stabilized zirconia crystal particles which contain Y2O3 in an amount of 2.8 to 4.5 mol %; and 70 to 90 mass % of an alumina crystal phase, the zirconia crystal phase having an average crystal particle size of not larger than 1 ?m.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: July 15, 2008
    Assignee: Kyocera Corporation
    Inventors: Kunihide Shikata, Shugo Onitsuka, Wang Yucong
  • Alumina/zirconia ceramics and method of producing the same
    Publication number: 20060178257
    Abstract: Composite ceramics having a high strength, a high toughness and an excellent abrasion resistance, and a method of producing the same. The composite ceramics comprises 10 to 30 mass % of a zirconia crystal phase including Ce-stabilized zirconia crystal particles which contain CeO2 in an amount of 9 to 12 mol % and Y-stabilized zirconia crystal particles which contain Y2O3 in an amount of 2.8 to 4.5 mol %; and 70 to 90 mass % of an alumina crystal phase, the zirconia crystal phase having an average crystal particle size of not larger than 1 ?m.
    Type: Application
    Filed: March 2, 2006
    Publication date: August 10, 2006
    Inventors: Kunihide Shikata, Shugo Onitsuka, Wang Yucong
  • Alumina/zirconia ceramics and method of producing the same
    Publication number: 20050119107
    Abstract: Composite ceramics having a high strength, a high toughness and an excellent abrasion resistance, and a method of producing the same. The composite ceramics comprises 10 to 30 mass % of a zirconia crystal phase containing 9 to 12 mol % of CeO2 and 2.8 to 4.5 mol % of Y2O3; and 70 to 90 mass % of an alumina crystal phase, the zirconia crystal phase having an average crystal particle size of not larger than 1 ?m.
    Type: Application
    Filed: September 8, 2004
    Publication date: June 2, 2005
    Inventors: Kunihide Shikata, Shugo Onitsuka, Wang Yucong