ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,741,463, issued on Sept. 22, was assigned to SEIKO EPSON Corp. (Japan).

"Liquid ejecting head and liquid ejecting apparatus" was invented by Masaki Mori (Shiojiri, Japan), Motoki Takabe (Shiojiri, Japan) and Eiju Hirai (Azumino, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid ejecting head includes: a wiring substrate; a plurality of pressure chambers that accommodate a liquid and communicate with nozzles; a drive element that is electrically coupled to the wiring substrate and changes a pressure in the pressure chamber; and a humidity detection section that is electrically coupled to the wiring substrate and is disposed for detection of ...