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. 13, 2015
Filed:
Mar. 21, 2013
Seiko Epson Corporation, Tokyo, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An electrophoretic particle of the invention include: a mother particle; and a covering layer, wherein the covering layer includes a plurality of polymers, each of which includes a polymerization initiator which includes a polymerization initiation group linked to a surface of the mother particle and polymerization parts in which monomers are polymerized from the polymerization initiation group as a starting point, wherein each of the polymer include the polymerization initiator, a first polymerization part, which is coupled to the polymerization initiator, in which first monomers that includes monomers with cross-linking groups are polymerized, and a second polymerization part in which second monomers that does not include monomers with cross-linking groups are polymerized, and the polymers are linked to each other at the cross-linking groups of the first polymerization parts via cross-linking agent.