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. 10, 2004
Filed:
Oct. 04, 2002
Jun Isono, Nagoya, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
An inkjet print head includes a piezoelectric actuator configured of stacked piezoelectric sheets with individual electrodes formed on the piezoelectric sheets. Positioning marks formed of the same material as the individual electrodes are formed one in each of the four corners of the piezoelectric sheets. A beam of light is radiated on the positioning marks in the stacked direction of the piezoelectric sheets, forming shadows of the positioning marks in each corner. The shadows are detected, and the center of gravity is determined for each shadow. Diagonal lines are drawn between the centers of gravity in opposing corners. The intersecting point of the diagonal lines serves as a reference point for bonding the piezoelectric actuator to the stacked cavity unit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile