Patents by Inventor Hironobu Kusanagi

Hironobu Kusanagi 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 body and cutting tool
    Patent number: 8889577
    Abstract: A sintered body containing alumina crystal particles and zirconia crystal particles as main components includes the tetragonal crystal particles as the zirconia crystal particles. The zirconia crystal particles satisfy relations 0%?A?3%, 3%?B?22% and 77%?C?96%,where A, B and C are as defined herein.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: November 18, 2014
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Jun Moteki, Yusuke Katsu, Kuniharu Tanaka, Takeshi Mitsuoka, Yoshihiro Kuroki, Hironobu Kusanagi
  • SINTERED BODY AND CUTTING TOOL
    Publication number: 20130236259
    Abstract: A sintered body containing alumina crystal particles and zirconia crystal particles as main components includes the tetragonal crystal particles as the zirconia crystal particles. The zirconia crystal particles satisfy relations 0%?A?3%, 3%?B?22% and 77%?C?96%, where A, B and C are as defined herein.
    Type: Application
    Filed: July 6, 2012
    Publication date: September 12, 2013
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Jun Moteki, Yusuke Katsu, Kuniharu Tanaka, Takeshi Mitsuoka, Yoshihiro Kuroki, Hironobu Kusanagi