ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,459,477, issued on Nov. 4, was assigned to HITACHI ASTEMO LTD. (Ibaraki, Japan).
"Disk brake" was invented by Hao Yu (Hitachinaka, Japan) and Takuya Usui (Hitachinaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A disk brake includes a brake mechanism configured to apply a braking force by advancing a piston in a cylinder portion based on driving of an electric motor to thus press inner and outer brake pads against a disk rotor, and an elastic member configured to bias the inner and outer brake pads in an axial direction of the disk rotor and in a direction away from the disk rotor. A biasing force of the elastic member is greater than sliding r...