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:
Oct. 08, 2013
Filed:
Mar. 15, 2011
Applicants:
Takashi Tamai, Shiojiri, JP;
Takeshi Tanoue, Matsumoto, JP;
Inventors:
Takashi Tamai, Shiojiri, JP;
Takeshi Tanoue, Matsumoto, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B41J 29/38 (2006.01); B41J 2/25 (2006.01); B41J 2/21 (2006.01);
U.S. Cl.
CPC ...
Abstract
Two types of decimating mask patterns having different ink gradation ratio distributions are prepared, and in the outbound and inbound passes of a head unit during bidirectional printing, the numbers of times ink is ejected from nozzle rows in recording heads provided for each ink are controlled using mask patterns that differ in accordance with the darkness of the ink.