ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,538, issued on July 14, was assigned to SUMITOMO HEAVY INDUSTRIES LTD. (Tokyo).
"Cryopump" was invented by Kenji Mochidzuki (Nishitokyo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cryopump includes: a cryopump container including a cryopump intake port; a radiation shield that is cooled to a first cooling temperature and extends from the cryopump intake port into the cryopump container; a cryopanel unit that is cooled to a second cooling temperature lower than the first cooling temperature and is disposed to be surrounded by the radiation shield in the cryopump container; and an intake port shield that is cooled to the first cooling temp...