US Patent Issued to AKEBONO BRAKE INDUSTRY on Dec. 16 for "Friction material" (Japanese Inventors)

ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,498,009, issued on Dec. 16, was assigned to AKEBONO BRAKE INDUSTRY Co. LTD. (Tokyo).

"Friction material" was invented by Yuta Watanabe (Tokyo), Motoyuki Miyaji (Tokyo), Hiroshi Yamamoto (Tokyo) and Takuya Takada (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A friction material includes a friction modifier, a binder, and a fibrous material. An alkali metal salt of phosphoric acid and a metal sulfide are contained as the friction modifier. The alkali metal salt of phosphoric acid may include trisodium phosphate. A wax containing, as a main component, an ester of a higher fatty acid and a higher alcohol may be contained as the friction modifier." ...