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. 22, 2009
Filed:
Jul. 29, 2005
Hiroyuki Tokunaga, Fujisawa, JP;
Hiroyuki Tokunaga, Fujisawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A producing method for a liquid discharge head having a pressure generation chamber communicating with a discharge port for discharging a liquid, a piezoelectric element provided corresponding to the pressure generation chamber, and a vibration plate provided between the pressure generation chamber and the piezoelectric element, the method including: a preparation step of preparing a flat plate-shaped substrate having a recess on a main surface thereof, a piezoelectric element forming step of forming the piezoelectric element in the recess, a vibration plate forming step of forming the flat vibration plate on the main surface of the substrate and the piezoelectric element, a pressure generation chamber forming step of forming the pressure generation chamber on the vibration plate, and a removing step of removing the substrate in at least a peripheral portion of the piezoelectric element.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile