ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,544,815, issued on Feb. 10, was assigned to SENDZIMIR JAPAN LTD. (Tokyo).
"Multistage rolling mill and method of changing divided backing bearing assembled shafts in multistage rolling mill" was invented by Takashi Norikura (Tokyo) and Tadashi Tamagawa (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Within a housing, divided backing bearing assembled shafts are each moved on any one of a housing bore upper surface 8a constituting the housing, spray frame upper surfaces 9, and rails 13, 19, and 20 of a changing carriage 12 by sliding apparatuses, and outside the housing, the divided backing bearing assembled shafts are extracted from within the hou...