ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,734,816, issued on Sept. 15, was assigned to SEIKO EPSON Corp. (Tokyo).
"Ink cartridge and printing apparatus" was invented by Takumi Nagashima (Matsumoto, Japan), Yoshihiro Koizumi (Shiojiri, Japan), Tadahiro Mizutani (Shiojiri, Japan) and Shun Oya (Kiso-machi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an aspect as an ink cartridge to be mounted to a printing machine including an ink introduction portion. The ink cartridge includes a containing portion configured to contain ink, a bottom wall being one of wall surfaces forming the ink cartridge and forming an opening portion through which the ink introduction portion is inserted...