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:
Mar. 01, 2005
Filed:
Oct. 30, 2003
Robert A. Moore, Mashpe, MA (US);
John F. Cooper, Harwich, MA (US);
Richard A. Fotland, Franklin, MA (US);
Michael H. Lee, San Jose, CA (US);
Eric G. Hanson, Burlingame, CA (US);
Napoleon J. Leoni, San Jose, CA (US);
Robert A. Moore, Mashpe, MA (US);
John F. Cooper, Harwich, MA (US);
Richard A. Fotland, Franklin, MA (US);
Michael H. Lee, San Jose, CA (US);
Eric G. Hanson, Burlingame, CA (US);
Napoleon J. Leoni, San Jose, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
Imaging systems and methods are described. In one aspect, an ink layer having an electrorheological fluid composition including a suspension of colorant particles dispersed in an electrically insulating carrier fluid is formed on a surface of an electrically insulating layer supported by an electrically conducting substrate. A charge image is projected onto the ink layer to selectively form charge-stiffened regions adhering to the electrically insulating layer and representing respective regions of the projected charge image. Non-charge-stiffened ink layer components are physically separated from the charge-stiffened regions.