ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,323, issued on Oct. 21, was assigned to KURARAY NORITAKE DENTAL INC. (Kurashiki, Japan).
"Dental glass composition" was invented by Tomohiro Emoto (Aichi, Japan), Nobusuke Kashiki (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 glass composition that has excellent fixability to dental prostheses, and that does not need firing and fixing to layer color or enable a build-up of porcelain thereon. The present invention relates to a dental glass composition comprising a glass powder (A) and a wax component (B). The glass powder (A) has an average particle diameter of ...