ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,746,186, issued on Sept. 29, was assigned to KURARAY NORITAKE DENTAL INC. (Kurashiki, Japan).
"Dental workpiece and method for producing same" was invented by Takahiro Niwa (Aichi, Japan), Kirihiro Nakano (Aichi, Japan) and Shinichiro Kato (Aichi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a dental workpiece that exhibits excellent machinability in a sintered state while possessing suitable strength for dental use. The present invention relates to a dental workpiece that exhibits an erosion rate of 8.0 micro metre/g or more, or a product of erosion rate (micro metre/g)xaverage crystal grain size (micro metre) gr...