ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,362, issued on Sept. 16, was assigned to Seiko Epson Corp. (Tokyo).
"Flow path unit and liquid ejection apparatus" was invented by Masashi Karasawa (Chino, Japan) and Takayoshi Mizuno (Shiojiri, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A flow path unit includes a first flange including a part of a flow path, and a second flange detachably coupled to the first flange and including a part of the flow path, wherein the first flange includes a facing surface that faces the second flange when the second flange is coupled to the first flange, the facing surface is provided with an O-ring annularly surrounding the flow path, a contact surface ...