US Patent Issued to NSK on March 11 for "Retainer" (Japanese Inventor)

ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,620, issued on March 11, was assigned to NSK LTD. (Tokyo).

"Retainer" was invented by Takatsune Onozawa (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A retainer that suppresses retainer sound, includes a main body portion, a plurality of pockets provided in a circumferential direction, and penetrating through the main body portion in a radial direction, and a retaining surface facing a ball, and forming a C shape when viewed from the radial direction. The retaining surface includes a C-shaped outer circumferential corner portion, a C-shaped inner circumferential corner portion, a first retaining surface arranged in a first rotatio...