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:
Apr. 04, 2000
Filed:
Aug. 28, 1997
Donald J Coulman, Corvallis, OR (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
A high-durability printhead and method for making the same. A substrate is provided which includes an ink ejector system and a barrier layer. An orifice plate having a bottom surface made of an elemental noble metal [e.g. gold, platinum, and/or palladium] is affixed to the barrier layer using an adhesive produced by combining a mercapto oxysilane polymer and a trialkoxy silane coupling agent. To accomplish affixation, a mercapto trialkoxy silane is applied to the bottom surface of the orifice plate, followed by treatment of the plate with water to yield the mercapto oxysilane polymer. The mercapto oxysilane polymer may also be formed before delivery to the plate. The coupling agent is then applied to the polymer, thereby producing the adhesive. The orifice plate is then attached to the barrier layer using this adhesive. As a result, a unique printhead is produced having improved structural integrity.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile