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. 24, 2007
Filed:
Aug. 21, 2003
Hideo Ohira, Tajimi, JP;
Hiromitsu Sago, Tokai, JP;
Kazuma Goto, Nagoya, JP;
Narumi Koga, Nagoya, JP;
Masaya Fujioka, Nagoya, JP;
Shunichi Higashiyama, Yotsukaichi, JP;
Hideo Ohira, Tajimi, JP;
Hiromitsu Sago, Tokai, JP;
Kazuma Goto, Nagoya, JP;
Narumi Koga, Nagoya, JP;
Masaya Fujioka, Nagoya, JP;
Shunichi Higashiyama, Yotsukaichi, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya-shi, JP;
Abstract
A water base ink for ink-jet recording is provided, which makes it possible to secure a high recording quality with a sharp image area edge by avoiding any blurring even when recording is performed on regular paper and which has satisfactory purge restoration performance. Therefore, no bubble remains in an ink flow passage, and no discharge failure is caused. Further, the discharge operation never becomes unstable. In the water base ink for ink-jet recording, the surface tension is not less than 40 mN/m, and the amount of dissolved oxygen is not more than 4 mg/L.