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:
Oct. 03, 2000
Filed:
Apr. 29, 1998
James A Feinn, San Diego, CA (US);
William R Knight, Corvallis, OR (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
An ink jet printhead structure having a silicon carbide layer, an ink barrier layer disposed on the silicon carbide layer and respective ink chambers formed in the ink barrier layer over respective thin film resistors and adjacent the silicon carbide passivation layer, each chamber formed by a chamber opening in the ink barrier layer and a portion of the silicon carbide layer such that a silicon carbide surface fully extends across an area enclosed by the chamber opening, whereby a silicon carbide surface fully extends across the ink chamber. The ink chambers are more particularly configured to emit ink drops in the range of about 2 to 4 picoliters.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile