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:
Mar. 04, 2014

Filed:

Sep. 21, 2012
Applicants:

Masashi Ono, Okazaki, JP;

Koichiro Hara, Nagoya, JP;

Atsushi Ito, Nagoya, JP;

Shohei Koide, Nagoya, JP;

Inventors:

Masashi Ono, Okazaki, JP;

Koichiro Hara, Nagoya, JP;

Atsushi Ito, Nagoya, JP;

Shohei Koide, Nagoya, JP;

Assignee:

Brother Kogyo Kabushiki Kaisha, Nagoya-shi, Aichi-ken, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/17 (2006.01); B41J 2/045 (2006.01);
U.S. Cl.
CPC ...
Abstract

A liquid droplet discharge head includes a plurality of discharge unit parts, each of which extends in a first direction. The discharge unit parts are arranged in a second direction intersecting with the first direction. Each of the discharge unit parts includes: a nozzle column configured by a plurality of nozzles; a liquid droplet discharge surface; a common flow path; a plurality of pressure chambers; a damper chamber extending in the first direction; a damper wall arranged between the damper chamber and the common flow path; and a pillar part connecting the damper wall and a separate wall that is different from the damper wall in the damper chamber. A position of the pillar part of at least one discharge unit part of the discharge unit parts in the first direction is deviated from a position of the pillar part in the other discharge unit part.


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