ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,539,256, issued on Feb. 3, was assigned to DAIWA CAN COMPANY (Tokyo).
"Connector" was invented by Toshio Iino (Sagamihara, Japan) and Toshihiro Asano (Sagamihara, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The connector includes a housing having a first casing and a second casing; a connection member formed into a cylinder an interior of which constitutes a first flow path L1 and arranged in the housing rotatably around an axis, a screw portion being formed on the connection portion in such a manner that the syringe can be screwed in; a flow path member arranged in the connection member; and a ratchet having a gear arranged in the connection me...