The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 28, 2014
Filed:
Sep. 06, 2013
Yuu Kimura, Kanagawa, JP;
Yuu Kimura, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A liquid ejection head includes a nozzle plate having a plurality of nozzles formed therein from which droplets are ejectable. The nozzle plate includes a nozzle substrate in which a plurality of nozzle holes each constituting a nozzle is formed, and a liquid-repellent film formed on a surface of the nozzle substrate on a droplet ejection side of the nozzle plate and on an inner wall of the nozzle on at least the droplet ejection side of the nozzle plate. A number of liquid-repellent groups per unit area in the liquid-repellent film formed on the inner wall of the nozzle decreases continuously from the droplet ejection side of the nozzle plate to a side opposite the droplet ejection side of the nozzle plate.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile