ALEXANDRIA, Va., Jan. 28 -- United States Patent no. RE50,759, issued on Jan. 27, was assigned to SHOFU INC. (Kyoto, Japan).
"Dental composite material having stable pasty property" was invented by Yusei Kadobayashi (Kyoto, Japan) and Masako Shigezawa (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A composite material including silanated filler and mixed polymerizable monomer, having a stable pasty property which keeps well and has a consistent usability. A composite material containing a silanated filler, a polymerizable monomer, and a polymerization initiator, and may be produced by a process which includes a mixed polymerizable monomer preparing step, a silanation step, a silanated filler pr...