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:
Jan. 29, 2013
Filed:
Apr. 04, 2011
Applicants:
Hui Du, Milpitas, CA (US);
Xiaojia Wang, Fremont, CA (US);
Hongmei Zang, Sunnyvale, CA (US);
Haiyan Gu, Fremont, CA (US);
Inventors:
Hui Du, Milpitas, CA (US);
Xiaojia Wang, Fremont, CA (US);
HongMei Zang, Sunnyvale, CA (US);
Haiyan Gu, Fremont, CA (US);
Assignee:
SiPix Imaging, Inc., Fremont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 26/00 (2006.01); B05D 1/36 (2006.01); G03G 17/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention is directed to an electrophoretic display fluid, in particular, pigment particles dispersed in a solvent or solvent mixture, and methods for their preparation. The pigment particles generated, according to the present invention, are stable in solvent under an electric field, have desired charge and charge density on the particle surface.