ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,535,138, issued on Jan. 27, was assigned to NOK Corp. (Japan).
"Seal ring" was invented by Hideya Watanabe (Kitaibaraki, Japan) and Yusuke Yoshida (Kitaibaraki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A circular annular seal ring made from a resin is adapted to be disposed between an outer member and an inner member that rotate relative to each other. The seal ring is disposed in a circumferential groove of the outer member or the inner member to isolate a liquid space from an external space. The seal ring is formed from an elongated and arcuate rod to define a circle by joining ends of the rod, and has a junction formed from the ends. The ...