ALEXANDRIA, Va., June 4 -- United States Patent no. 12,320,428, issued on June 3, was assigned to EAGLE INDUSTRY Co. LTD. (Tokyo).
"Sealing device" was invented by Tomohiro Uchiyama (Tokyo), Akihiro Takahashi (Tokyo) and Yuki Masumi (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sealing device provides consistent sealing performance in applications where a rotating shaft rotates at high speed. The sealing device 10 seals an annular gap between a rotating shaft 50 and a housing 60, and includes a case 100 fixedly attached to the shaft hole, and a seal ring 200 held in the case 100 such as to be restricted from moving in a rotating direction, and to separate a high-pressure side (H) where pressure ris...