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. 09, 2003
Filed:
Jun. 06, 2002
Tatsuo Murata, Kanagawa, JP;
Masami Yokota, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid discharge head has an element base plate provided with a plurality of heat generating members and electrode wiring formed by thin-filmed electrode and common thick-filmed electrode for applying driving signals to the heat generating members, and with the structure arranged to form a flow path structural member to constitute discharge ports and liquid flow paths corresponding to each of the heat generating members, the common thick-filmed electrode is covered and sealed by the flow path structural member, and then, the driving IC assembled on an IC assembling and others are sealed by use of sealant, hence making it possible to secure the sealing capability, while making the distance between the common thick-filmed electrode and the driving IC smaller for the effective utilization of the area of the base plate. Thus, the element base plate can be made smaller.