ALEXANDRIA, Va., June 19 -- United States Patent no. 12,330,422, issued on June 17, was assigned to MIYAKOSHI PRINTING MACHINERY Co. LTD. (Narashino, Japan).
"Service tank" was invented by Takao Namiki (Sakura, Japan), Wataru Itabashi (Funabashi, Japan) and Mizuki Sugahara (Funabashi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A service tank includes a container having an internal space, the container being provided with an inlet through which ink is introduced into the internal space and a plurality of supply ports through which the ink is supplied, a divider configured to divide the internal space into a plurality of compartments, and a detector configured to detect that the liquid surface of the...