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US 2025/0135773 A1Published application
Liquid discharge head, liquid discharge apparatus, method for manufacturing liquid discharge head
OwnerTsutoh AOYAMAinventor
Life of this patent
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Abstract
A liquid discharge head includes: a nozzle configured to discharge a liquid; a substrate including a pressure chamber communicating with the nozzle; and an electromechanical conversion element, the liquid discharge head configured to drive the electromechanical conversion element to pressurize ink in the pressure chamber and discharge the liquid from the nozzle, the liquid discharge head provided with a surface layer having lyophilicity with respect to the liquid on inner peripheral surfaces of the nozzle and the pressure chamber.
Claims15
A liquid discharge head, comprising:
- a nozzle plate having nozzles from each of which a liquid is to be discharged;
- a substrate including a pressure chamber communicating with the nozzle;
- an electromechanical converter in the nozzle plate, the electromechanical converter to apply pressure to ink in the pressure chamber to discharge the liquid from the nozzle;
- and
- a lyophilic surface layer having lyophilicity with the liquid, on an inner peripheral surface of each of the nozzle and the pressure chamber.
2 more elements
A method for manufacturing a liquid discharge head, the method comprising:
- laminating a diaphragm on a substrate;
- forming an electromechanical converter on the diaphragm;
- forming a nozzle in the substrate;
- forming a pressure chamber in the substrate, the pressure chamber communicating with the nozzle;
- and
- forming a lyophilic surface layer having lyophilicity with the liquid, on an inner peripheral surface of each of the pressure chamber and the nozzle.
3 more elements
Dependencies are inferred from the claim text.