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. 07, 2008
Filed:
Sep. 22, 2003
Takanori Kamoto, Nara, JP;
Masanori Kinomoto, Yamatokoriyama, JP;
Hiromi Nakatsu, Amagasaki, JP;
Kiyobumi Morimoto, Tenri, JP;
Takanori Kamoto, Nara, JP;
Masanori Kinomoto, Yamatokoriyama, JP;
Hiromi Nakatsu, Amagasaki, JP;
Kiyobumi Morimoto, Tenri, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An ink composition is prepared by incorporating water, a colorant and a polyester resin in which a polybasic carboxylic acid ingredient contains an aromatic dicarboxylic acid having a metal sulfonate group. The ink composition is stored in an ink tank of an ink head, the ink composition is supplied from the ink tank into an ink chamber having a discharge port, a voltage is applied to partition wall portions formed of a piezoelectric material, a pressure is applied to the ink composition contained in the ink chamber by the partition wall portions and liquid droplets of the ink composition are discharged from the discharge port and deposited on a recording material thereby recording images.