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. 02, 1996
Filed:
Apr. 17, 1995
Thomas E Watrobski, Rochester, NY (US);
Joseph J Wysocki, Webster, NY (US);
Thomas A Tellier, Williamson, NY (US);
Joseph F Stephany, Williamson, NY (US);
Michael Poleshuk, Webster, NY (US);
Gary A Kneezel, Webster, NY (US);
Richard V LaDonna, Fairport, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
Data relating to the performance of an individual ink-jet printhead is stored in an electrically-readable form on a silicon substrate forming an essential part of the printhead. A template of electrically-detectable structure is created on the substrate at manufacture, and then portions of the structure are removed in accordance with the data desired to be stored. In one embodiment, the digital performance data may be encoded and also read out in serial form using a shift register on the chip.