ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,379,054, issued on Aug. 5, was assigned to Edwards Japan Ltd. (Chiba, Japan).
"Vacuum pump and connection port used in vacuum pump" was invented by Tsutomu Takaada (Chiba, Japan) and Yongwei Shi (Chiba, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a vacuum pump which can be reduced in size without reducing exhaust performance, and a connection port which is used in the vacuum pump. The connection port which connects the vacuum pump and an auxiliary pump includes an oval first opening connectable to the vacuum pump and a circular second opening connectable to the auxiliary pump, and a diameter dimension of the first opening is set to ...