ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,385,532, issued on Aug. 12, was assigned to TOKYO MOTRONICS Co. LTD. (Nagano, Japan).
"Electromagnetic braking device" was invented by Yoichi Hasebe (Nagano, Japan), Tadashi Nakamura (Nagano, Japan) and Osamu Doi (Nagano, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electromagnetic braking device includes a brake disk, a fixed disk, an armature, a biasing member for biasing the armature, and a stator for attracting the armature. In a stator magnetic circuit member, a first yoke, a permanent magnet, and a second yoke are arranged in this order from one end to the other end of a U shape. In a rotatable state or a rotation braking state, even wh...