Patents by Inventor Wakako Takano

Wakako Takano 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 compact for thermistor element, process for producing the same, thermistor element and temperature sensor
    Patent number: 7556745
    Abstract: A sintered body for thermistor element of the invention is a sintered body for thermistor element containing Sr, Y, Mn, Al, Fe, and O, wherein not only respective liquid crystal phases of a perovskite type oxide and a garnet type oxide are contained, but also a liquid crystal phase of at least one of an Sr—Al based oxide and an Sr—Fe based oxide. FeYO3 and/or AlYO3 is selected as the foregoing perovskite type oxide, and at least one member selected from Y3Al5O12, Al2Fe3Y3O12, and Al3Fe2Y3O12 is selected as the foregoing garnet type oxide, respectively by the powder X-ray diffraction analysis.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: July 7, 2009
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Takaaki Chosokabe, Masaki Iwaya, Naoki Yamada, Wakako Takano