ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,760, issued on May 20, was assigned to NOK Corp. (Tokyo).
"Sealing device and method for manufacturing sealing device" was invented by Hikaru Tadano (Shizuoka, Japan), Tokunori Yanagi (Shizuoka, Japan), Hiroshi Suzuki (Shizuoka, Japan) and Koichi Yoshimura (Shizuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a sealing device that can be easily manufactured and achieve a reduction in friction and a method for manufacturing the sealing device. A sealing device is provided between a housing in which a plurality of opening portions are formed in a tubular inner peripheral surface and a rotor that is disposed in the housing and sw...