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:
Sep. 18, 2001
Filed:
Sep. 25, 2000
Applicant:
Inventor:
Todd A. Cleland, Corvallis, OR (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/05 ;
U.S. Cl.
CPC ...
B41J 2/05 ;
Abstract
In order to overcome inefficient power dissipation in parasitic resistances and to provide economies in the power supply, a higher resistance value segmented heater resistor is employed in a thermal inkjet printhead. A production tolerance early failure mechanism is avoided with the use of a cut introduced into the conductive shorting bar coupling the segments of the heater resistor.