US Patent Issued to Canon on Oct. 6 for "Liquid ejection head" (Japanese Inventor)

ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,752,535, issued on Oct. 6, was assigned to Canon K.K. (Tokyo).

"Liquid ejection head" was invented by Hikaru Sugimoto (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid ejection head includes a substrate, and a member provided on the substrate. The member has an ejection orifice or ejection orifices formed therein to eject a liquid. The member is formed of a water repellent layer having a multilayer structure including a first water repellent layer as an outermost layer and a second water repellent layer provided directly below the first water repellent layer. The first water repellent layer has a water contact angle of 80deg or mor...