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:
Feb. 02, 2016

Filed:

Dec. 22, 2014
Applicant:

Seiko Epson Corporation, Shinjuku-ku, JP;

Inventors:

Hiroyuki Ishii, Shiojiri, JP;

Hiroyuki Hagiwara, Matsumoto, JP;

Masayuki Eguchi, Matsumoto, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/175 (2006.01); B01D 35/02 (2006.01);
U.S. Cl.
CPC ...
B41J 2/17563 (2013.01); B01D 35/02 (2013.01);
Abstract

A filter unit including a liquid flow path through which ink flows and a filter chamber which forms a portion of the liquid flow path and is filled with a pressurized ink includes a filter unit main body and a second cover member which include the liquid flow path and form the filter chamber; and a filter which is disposed within the filter chamber, the second cover member being provided with a protruding portion in a region which opposes the filter, and the protruding portion being provided between a supply port of the ink which is supplied to the filter chamber and a discharge port of the ink which is discharged from the filter chamber in plan view in relation to the filter.


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