ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,861, issued on May 13, was assigned to NTN Corp. (Osaka, Japan).
"Insulated bearing device" was invented by Hayato Kawaguchi (Shizuoka, Japan) and Toshiki Masuda (Shizuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An insulated bearing device includes a housing, an outer ring and rolling elements, and an insulating film for providing electrical insulation between the housing and the outer ring is disposed on the surface of the outer ring. The insulating film includes a straight portion extending along the outer periphery of the outer ring and having a constant outer diameter in the axial direction. The housing has, on the inner periphery ...