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:
Jun. 05, 2012
Filed:
May. 14, 2008
Applicant:
Tomohiro Inoue, Yokohama, JP;
Inventor:
Tomohiro Inoue, Yokohama, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/14 (2006.01); B41J 2/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a nozzle plate for liquid ejector head and a liquid ejector head. The nozzle plate for liquid ejector head includes at least a nozzle hole for ejecting droplets composed of an ejection liquid, wherein the surface energy of an inner wall of the nozzle hole at 25° C. is lower than the surface tension of the ejection liquid at 25° C. and is substantially same as the surface energy of the ejection side surface of the nozzle plate at 25° C.