ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,128, issued on Sept. 8, was assigned to SHIRAISHI CENTRAL LABORATORIES Co. LTD. (Amagasaki-city, Japan).
"Calcium carbonate sintered body and method for producing same, and bone grafting material" was invented by Hidero Unuma (Yonezawa-city, Japan), Toshitake Furusawa (Yonezawa-city, Japan), Shota Umemoto (Amagasaki-city, Japan) and Masahiko Tajika (Amagasaki-city, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a method for producing a calcium carbonate sintered body whereby a good sintered body can be obtained without having to use any sintering aid. A method for producing a calcium carbonate sintered body includes the steps of: c...