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:
May. 24, 2016
Filed:
Dec. 18, 2012
E Ink Corporation, Billerica, MA (US);
Naoki Hiji, Kanagawa, JP;
Ryota Mizutani, Kanagawa, JP;
Chikara Manabe, Kanagawa, JP;
Cao Jun, Kanagawa, JP;
Toshihide Aoshima, Shizuoka, JP;
Daisuke Nakayama, Kanagawa, JP;
Yasuo Yamamoto, Kanagawa, JP;
E INK CORPORATION, Billerica, MA (US);
Abstract
There is provided a dispersion liquid for electrophoretic display, containing a dispersion medium, a colored electrophoretic particle groupthat is dispersed in the dispersion medium and migrates in the dispersion medium according to an electric field, a non-electrophoretic particle groupthat is dispersed without migrating in the dispersion medium and has a color different from that of the electrophoretic particle group, and a compound having a neutral polar group and a hydrophobic group, which is contained in the dispersion medium in a ratio of about 0.01 to about 1 mass % based on the entire dispersion liquid.