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:
Aug. 19, 2003
Filed:
Jan. 03, 2002
Chieh-Wen Wang, Hsin-Chu, TW;
I-Chung Hou, Hsin-Chu, TW;
Yi-Hsuan Lai, Hsin-Chu, TW;
Chen-Yu Cheng, Hsin-Chu, TW;
International United Technology Co., Ltd., Chu-Pei, TW;
Abstract
An ink print head has an ink container for storing fluid, a chip installed at a bottom of the ink container having a central slot for passing fluid, and a dry film formed on the chip having a plurality of ink chambers. The ink print head also has a nozzle plate formed below the dry film, a middle portion of the nozzle plate protruding above the nozzle plate so as to form a central refill chamber, a plurality of nozzles corresponding to the ink chambers of the dry film, and a plurality of heaters set on the chip for heating fluid inside the ink chambers so that the fluid can be ejected from the nozzles of the nozzle plate. The fluid inside the ink container will flow through the central slot into the central refill chamber and then into the ink chambers.