Patents by Inventor Itaro Ueda

Itaro Ueda 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).

  • SEMICONDUCTOR PORCELAIN COMPOSITION, POSITIVE TEMPERATURE COEFFICIENT ELEMENT, AND HEAT-GENERATING MODULE
    Publication number: 20140197156
    Abstract: The present invention provides a semiconductor ceramic composition which is represented by a composition formula of [(Bi.A)x(Ba1-yRy)1-x](Ti1-zMz)aO3 (in which A is at least one kind of Na, Li and K, R is at least one kind of rare earth elements (including Y), and M is at least one kind of Nb, Ta and Sb), in which a, x, y and z satisfy 0.90?a?1.10, 0<x?0.30, 0?y?0.050 and 0?z?0.010 and an average distance between voids, which is an average value of a space between voids being internally present, is 1.0 ?m or more and 8.0 ?m or less.
    Type: Application
    Filed: September 28, 2012
    Publication date: July 17, 2014
    Applicant: HITACHI METALS, LTD.
    Inventors: Kentaro Ino, Takeshi Shimada, Itaro Ueda, Toshiki Kida