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:
Jul. 27, 2004
Filed:
Mar. 20, 2002
Applicant:
Inventor:
Keith Gardner, Cambridge, GB;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/45 ;
U.S. Cl.
CPC ...
B41J 2/45 ;
Abstract
A light-emitting diode (LED) print head has a linear array of LEDs and device drivers for delivering current to each LED individually. An imaging lens system to create a real image of the LED array is provided in the form of a plurality of gradient index lenses and the LEDs each have emission cones closely matched to the numerical aperture of the gradient index imaging lenses.
Gardner, Keith. (2004). Led print head for electrophotographic printer (U.S. Patent No. 6768507). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6768507
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile