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.

Date of Patent:
Jun. 14, 2016

Filed:

Jan. 28, 2014
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Youichi Fukaya, Tokyo, JP;

Hidehiko Fujimura, Hachioji, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2006.01); B41J 2/14 (2006.01); B41J 2/16 (2006.01);
U.S. Cl.
CPC ...
B41J 2/14201 (2013.01); B41J 2/14209 (2013.01); B41J 2/1607 (2013.01); B41J 2/1623 (2013.01); B41J 2202/11 (2013.01); Y10T 156/1064 (2015.01);
Abstract

To reduce a liquid discharge amount by vibrating meniscuses at high acceleration with displacement of partitions, a plurality of partitions, each formed of a piezoelectric material, are provided to thereby form a plurality of pressure chambers. Each of electrode pairs for shear-deforming each partition is arranged on both sides of a corresponding one of the partitions. A nozzle plate having nozzles each connected to one of the pressure chambers is arranged on the side of a first end of the pressure chambers. Each pressure chamber is formed such that the width of the pressure chamber becomes long as it approaches, from the first end, a second end on the opposite side.


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