ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,562, issued on Nov. 25, was assigned to KURARAY NORITAKE DENTAL INC. (Kurashiki, Japan).
"Dental restoration material composition" was invented by Hirotaka Horiguchi (Niigata, Japan) and Tatsuya Kajikawa (Chiba, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A dental restoration material composition includes a (meth)acrylic acid ester compound (A) having two or more (meth)acryloyloxy groups per molecule, a mono(meth)acrylic acid ester compound (B), a polymerization initiator (C), and an organic-inorganic composite filler (D). The mono(meth)acrylic acid ester compound (B) includes at least one selected from the group consisting of a mono(meth)a...