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. 16, 2005
Filed:
May. 21, 2004
Hue P. Le, Beaverton, OR (US);
Hoi P. Le, Beaverton, OR (US);
Thanh P. Le, Beaverton, OR (US);
Linh B. Tran, Aloha, OR (US);
Hue P. Le, Beaverton, OR (US);
Hoi P. Le, Beaverton, OR (US);
Thanh P. Le, Beaverton, OR (US);
Linh B. Tran, Aloha, OR (US);
Picojet, Inc., Hillsboro, OR (US);
Abstract
A piezoelectric ceramic ink-jet print head is made by an inventive ultrasonic bonding process. Specifically, there are several improved features of ink jet print heads, including a more cost-effective bonding process using an ultrasonic bonding technique, an improved piezoelectric ceramic crystal pattern, and improved print head-piezoelectric electrical contacts. Further, there is an ultrasonic bonding process joining metallic objects with ultrasonic energy.