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. 08, 2003
Filed:
Mar. 02, 2000
Alexander E. Silverman, Sunnyvale, CA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A kit comprising rotating element sheet material, a highlighting implement, and an erasing implement, a binder, and a method of use. The rotating element sheet material comprises a plurality of first rotatable elements and a plurality of second rotatable elements disposed in a substrate. Each first rotatable element in the plurality has a first collection of responses to incident electromagnetic radiation of interest. One response in the first collection renders the first rotatable element transparent-clear to incident electromagnetic energy of interest, and a second response renders the first rotatable element opaque to incident electromagnetic energy of interest. The first rotatable element also exhibits a first work function. Likewise, each second rotatable element has a second collection of responses to incident electromagnetic radiation of interest. A first response in the second collection renders the second rotatable element transparent-clear to the incident electromagnetic energy of interest. A second response renders the second rotatable element transparent-colored to the incident electromagnetic energy of interest. The second rotatable elements also exhibit a second work function that is less than the first work function. The addressing implement introduces a vector field in a first direction in the substrate where the vector field has a magnitude greater than the second work function and less than the first work function. In addition, the erasing implement introduces a vector field in a second direction in the substrate where the vector field has a magnitude greater than the second work function and less than the first work function. The binder is configured to accommodate the rotating element sheet material, the highlighting implement, and the erasing implement.