ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,377,658, issued on Aug. 5, was assigned to SEIKO EPSON Corp. (Tokyo).
"Cap and cartridge unit" was invented by Tadahiro Mizutani (Shiojiri, Japan), Yoshihiro Koizumi (Shiojiri, Japan), Shun Oya (Kiso-machi, Japan), Takumi Nagashima (Matsumoto, Japan) and Hiroto Hanba (Shiojiri, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cartridge including a first guide rib and a second guide rib that extend in the Y direction and project outward in the X direction. In an attachment state in which a cap is attached to the cartridge, the cap includes a sealing wall having a liquid holding portion that faces the liquid supply portion, a first projecting rib pro...