US Patent Issued to CKD on July 7 for "Valve unit" (Japanese Inventors)

ALEXANDRIA, Va., July 7 -- United States Patent no. 12,674,520, issued on July 7, was assigned to CKD Corp. (Aichi, Japan).

"Valve unit" was invented by Masaya Yamauchi (Aichi, Japan), Tatsushi Nabei (Aichi, Japan) and Kazuhiro Fujita (Aichi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A valve unit includes a rotary valve having a predetermined clearance between an inner surface of a main body and a valve element. The magnet coupling includes eight outer peripheral magnets and eight inner peripheral magnets having N-poles and S-poles each on an outer or inner peripheral side. The outer peripheral magnets are disposed such that the N-poles and the S-poles are disposed alternately in a circumferential...