ALEXANDRIA, Va., July 16 -- United States Patent no. 12,359,693, issued on July 15, was assigned to NTN Corp. (Osaka, Japan).
"Tapered roller bearing" was invented by Shouta Toho (Kuwana, Japan) and Naoki Nakatochi (Kuwana, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a tapered roller bearing (1) for which a dimensionless number X is defined by the following formula (1) based on a small-diameter-side gap S1 which is a gap between a small-diameter-side annular part (6) of a retainer (5) and a small collar part (2b) of an inner ring (2), a large-diameter-side gap S2 which is a gap between the large-diameter-side annular part (7) and a large collar part (2c) of the inner ring (2), an average...