ALEXANDRIA, Va., March 3 -- United States Patent no. 12,564,543, issued on March 3, was assigned to KURARAY NORITAKE DENTAL INC. (Kurashiki, Japan).
"Dental composition" was invented by Ryo Matsuura (Niigata, Japan) and Tatsuya Kajikawa (Niigata, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An object of the present invention is to provide a dental composition that shows desirable adhesive properties to tooth structure, and that has desirable mechanical strength in the form of a cured product while having low polymerization shrinkage stress. The present invention relates to a dental composition comprising: a (meth)acrylic compound (A); a monomer (B) having an acidic group and a molecular weight of les...