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. 23, 2005
Filed:
Nov. 26, 2003
Masashige Mitsuhashi, Tokyo, JP;
Shigeru Umehara, Niigata, JP;
Masashige Mitsuhashi, Tokyo, JP;
Shigeru Umehara, Niigata, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
An inkjet recording head includes a two-dimensional array of a pressure chambers and corresponding array of piezoelectric elements each for applying a pressure wave to ink in a corresponding pressure chamber. In fabrication, a piezoelectric plate temporarily bonded onto a substrate is subjected to sandblasting to form the plurality of piezoelectric elements After the piezoelectric elements are bonded as a unit onto a diaphragm which constitutes part of the walls of the pressure chambers, the substrate is removed. Dummy patterns equalize the degree of side etching among the piezoelectric elements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile