ALEXANDRIA, Va., June 4 -- United States Patent no. 12,319,052, issued on June 3, was assigned to STAR MICRONICS Co. LTD. (Shizuoka, Japan).
"Printer" was invented by Hiroki Inoue (Shizuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A printer provided with a storing space for a paper roll having a core hole in the center includes a paper roll holder having a protrusion adapted to fit into the core hole of the paper roll. The paper roll holder is switchable between a protruded state that the protrusion protrudes into the storing space and a retracted state that the protrusion retracts from the storing space. The printer further includes a stopper adapted to engage with the paper roll holder while t...