US Patent Issued to NTN on March 17 for "Bearing apparatus" (Japanese Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,988, issued on March 17, was assigned to NTN Corp. (Osaka, Japan).

"Bearing apparatus" was invented by Shohei Hashizume (Kuwana, Japan), Keiichi Ueda (Kuwana, Japan) and Yasuyuki Hamakita (Kuwana, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A bearing apparatus includes a housing where a main spindle is accommodated, a bearing including an inner ring and an outer ring, the bearing supporting the main spindle rotatably with respect to the housing, a retaining lid fitted to an inside surface of the housing while the retaining lid is in contact with an axial end surface of the housing and an axial end surface of the outer ring, and a communica...