US Patent Issued to KURARAY NORITAKE DENTAL on Feb. 24 for "Zirconia composition, pre-sintered body and sintered body, and method of producing the same" (Japanese Inventor)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,427, issued on Feb. 24, was assigned to KURARAY NORITAKE DENTAL INC. (Kurashiki, Japan).

"Zirconia composition, pre-sintered body and sintered body, and method of producing the same" was invented by Yoshihisa Ito (Miyoshi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A composition comprises a zirconia powder, in which 55% or more thereof is monoclinic, and a stabilizer capable of suppressing phase transition of zirconia. An average particle diameter of zirconia particles and particles of the stabilizer is 0.06 micro metre to 0.17 micro metre. At least a portion of the stabilizer does not form a solid solution with zirconia."

The patent was ...