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:
Jul. 16, 2013
Filed:
May. 14, 2008
Nozzle plate, droplet discharge head, method for manufacturing the same and droplet discharge device
Applicants:
Kazufumi Oya, Suwa, JP;
Katsuji Arakawa, Chino, JP;
Inventors:
Kazufumi Oya, Suwa, JP;
Katsuji Arakawa, Chino, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A nozzle plate includes a silicon substrate, and a nozzle hole formed in the silicon substrate for discharging a liquid droplet provided with: a first nozzle portion formed perpendicularly to a surface of the silicon substrate; a second nozzle portion formed on a same axis as an axis of the first nozzle portion and having a cross-sectional area that is larger than a cross-sectional area of the first nozzle portion; and an inclined portion having a cross-sectional area gradually increasing from the first nozzle portion to the second nozzle portion.