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:
Jun. 20, 1995
Filed:
Aug. 09, 1993
Applicant:
Inventors:
Donald E Wenzel, Albany, OR (US);
Michael G Groh, Albany, OR (US);
Assignee:
Hewlett-Packard Corporation, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ; B41J / ;
U.S. Cl.
CPC ...
347 45 ; 298901 ; 156 60 ;
Abstract
A poly-p-xylylene coating has been found to demonstrate superior properties as a thermal ink-jet adhesive material in combination with resistor assemblies employed in thermal ink-jet printheads. This material evidences better adhesion for securing the orifice plate to the barrier material used to form the ink firing chambers within the printhead and superior corrosion resistance to thermal ink-jet inks, compared to other coating materials.
Wenzel, Donald. (1995). Poly-p-xylylene films as an orifice plate coating (U.S. Patent No. 5426458). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5426458
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile