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:
Dec. 28, 2004
Filed:
May. 13, 2002
Chieh-Wen Wang, Hsinchu, TW;
Leo Hu, Tai-Ping, TW;
Yuan-Liang Lan, Chupei, TW;
Eric G. Lean, Hsin-Chu, TW;
International United Technology Co., Ltd., Hsin-Chu, TW;
Abstract
An inkjet print head chip. The chip has a first column of firing chambers and a second column of firing chambers in which each firing chamber comprises a heater and an ink channel. A first ink slot is formed between the first column of firing chambers and the periphery of the chip, in which the first ink slot comprises a plurality of first ink sub-slots and each first ink sub-slot provides ink to part of heaters in the first column of firing chambers. A second ink slot is formed between the second column of firing chambers and the periphery of the chip to provide ink to the heaters in the second column of firing chambers. A dry film is patterned on the entire surface of the chip to separate the first ink sub-slots.