US Patent Issued to TOSOH on March 17 for "Zirconia sintered body and method for producing the same" (Japanese Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,170, issued on March 17, was assigned to TOSOH Corp. (Yamaguchi, Japan).

"Zirconia sintered body and method for producing the same" was invented by Satoshi Tsuchiya (Yamaguchi, Japan), Hiroyuki Fujisaki (Yamaguchi, Japan) and Hitoshi Nagayama (Yamaguchi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A complex sintered body includes a lamination of a layer composed of a zirconia sintered body containing 0.5% or more by mole and less than 4% by mole of an oxide of cerium in terms of CeO2, 2% or more by mole and less than 6% by mole of yttria and 0.1% or more by mass and less than 2% by mass of an oxide of aluminum; and at least one of a layer ...