ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,978, issued on Oct. 28, was assigned to EBARA Corp. (Tokyo).
"Magnetic bearing apparatus with axial pole segments" was invented by Yu Kakesu (Tokyo), Kunihiko Tanaka (Tokyo) and Toshimitsu Barada (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A magnetic bearing apparatus capable of correcting inclination of a rotating element with a small magnetic attractive force and capable of stably supporting the rotating element is disclosed. The magnetic bearing apparatus includes: a non-magnetic ring made of non-magnetic material; and at least three axial magnetic poles arranged along a circumferential direction of the non-magnetic ring. Each axial mag...