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:
Jan. 30, 2018
Filed:
Mar. 21, 2017
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Masayuki Murai, Matsumoto, JP;
Masakazu Ohashi, Shiojiri, JP;
Ryota Miyasa, Matsumoto, JP;
Kosuke Chidate, Suwa, JP;
Takako Sugiyama, Azumino, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/14 (2006.01);
U.S. Cl.
CPC ...
B41J 2/14201 (2013.01);
Abstract
An image forming method includes discharging an ink jet ink composition which contains a diketopyrrolopyrrole pigment and a solvent having a SP value of equal to or lower than 13 by using an apparatus including a piezo ink jet head satisfying the following Expression (1).0.13≦{(discharge amount per droplet ejection)/(volume of ink pressure chamber)}×100  (1)