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.

Date of Patent:
Nov. 29, 2011

Filed:

Aug. 31, 2009
Applicants:

Ryojiro Akashi, Kanagawa, JP;

Daisuke Nakayama, Kanagawa, JP;

Jun Kawahara, Kanagawa, JP;

Inventors:

Ryojiro Akashi, Kanagawa, JP;

Daisuke Nakayama, Kanagawa, JP;

Jun Kawahara, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 26/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Particles for display including a colorant, a first polymer gel having a charging group and a second polymer compound having a hydrophilic group, the first polymer gel and the second polymer compound forming an IPN structure or a semi-IPN structure.


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