ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,427,769, issued on Sept. 30, was assigned to Canon K.K. (Tokyo).

"Recording element substrate and method of manufacturing the same" was invented by Takanobu Manabe (Kanagawa, Japan), Junichiro Iri (Kanagawa, Japan), Hiroyuki Murayama (Oita, Japan), Kenji Fujii (Kanagawa, Japan), Satoshi Ibe (Kanagawa, Japan) and Narumi Shinohara (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A recording element substrate includes an ejection port forming member in which an ejection port configured to eject liquid is formed, and a substrate. The substrate includes a liquid supply port that supplies the liquid to the ejection port, a first surface on whi...