ALEXANDRIA, Va., March 5 -- United States Patent no. 12,241,504, issued on March 4, was assigned to NTN Corp. (Osaka, Japan).
"Rolling bearing" was invented by Hayato Kawaguchi (Shizuoka, Japan) and Toshiki Masuda (Shizuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A bearing device includes an inner ring and an outer ring. At least one of the radially inner surface of the inner ring and the radially outer surface of the outer ring is covered with a coating layer. The coating layer is a coating layer composite composed of a plurality of layers. Of the plurality of layers, the surface layer is composed of an anti-creep film having lubricity, and at least one layer other than the surface layer is co...