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:
Jul. 21, 2009
Filed:
Jan. 26, 2007
Satoshi Okuda, Kiyosu, JP;
Narumi Koga, Nagoya, JP;
Kazuma Goto, Nagoya, JP;
Atsushi Ito, Nagoya, JP;
Koichiro Hara, Nagoya, JP;
Masaharu Ito, Nagoya, JP;
Satoshi Okuda, Kiyosu, JP;
Narumi Koga, Nagoya, JP;
Kazuma Goto, Nagoya, JP;
Atsushi Ito, Nagoya, JP;
Koichiro Hara, Nagoya, JP;
Masaharu Ito, Nagoya, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya-shi, Aichi-ken, JP;
Abstract
In one embodiment, the disclosure relates to an ink-jet head including an ink chamber, a pressure chamber in communication with the ink chamber, a nozzle for ejecting an ink in communication with the pressure chamber, a piezoelectric actuator for applying an ejection pressure to an ink in the pressure chamber, and an ink passage extending from a boundary of the ink chamber to a tip of the nozzle. The tip of the nozzle has an aperture diameter of from about 15 to about 25 μm, and the ink passage is configured such that when an ink having a viscosity of from about 2.5 to about 3 mPa·s is passed therethrough, a passage resistance value of the ink passage is from about 50 to about 100 kPa·s/mm. Another embodiment of the disclosure relates to an ink-jet recording device containing such an ink-jet head.