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. 18, 2017
Filed:
Jun. 30, 2015
Applicant:
Hewlett-packard Development Company, L.p., Houston, TX (US);
Inventors:
Napoleon Leoni, San Jose, CA (US);
Omer Gila, Cupertino, CA (US);
Henryk Birecki, Palo Alto, CA (US);
Richard Fotland, Franklin, MA (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/167 (2006.01); G02F 1/1333 (2006.01);
U.S. Cl.
CPC ...
G02F 1/167 (2013.01); G02F 1/13338 (2013.01); G02F 1/133348 (2013.01);
Abstract
An electronic paper device includes a ground plane, a charge receiving layer, and a porous stand off layer disposed over the charge receiving layer. An active layer is interposed between the ground plane and the charge receiving layer, the active layer including a plurality of microcapsules containing charged pigments. A system for writing information to electronic paper is also provided.