US Patent Issued to NOK on Dec. 23 for "Sealing device" (Japanese Inventors)

ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,504,077, issued on Dec. 23, was assigned to NOK Corp. (Tokyo).

"Sealing device" was invented by Koya Matsushita (Kumamoto, Japan) and Takuya Nishimura (Kumamoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A sealing device includes an inner peripheral surface that is a surface facing an outer peripheral surface of a shaft, and an outer peripheral surface that is a surface facing an inner peripheral surface of a shaft hole. The inner peripheral surface has an inner peripheral recessed surface that is an annular surface recessed to an outer periphery side. The outer peripheral surface has an outer peripheral recessed surface that is an annular su...