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:
Apr. 01, 2008
Filed:
Jun. 02, 2005
Atsushi Miyazaki, Fujimi-machi, JP;
Toshifumi Nishida, Osaka, JP;
Mitsuo Kushino, Inagawa-cho, JP;
Teruo Kikuta, Nagaokakyo, JP;
Atsushi Miyazaki, Fujimi-machi, JP;
Toshifumi Nishida, Osaka, JP;
Mitsuo Kushino, Inagawa-cho, JP;
Teruo Kikuta, Nagaokakyo, JP;
Nippon Shokubai Co., Ltd., Osaka, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An electrophoretic particle including: a pigment particle having an average particle diameter of 1 μm or smaller; and a polymer layer having an average thickness of 1 to 500 nm formed on a surface of the pigment particle, wherein 50% or higher of an entire surface of the pigment particle is coated with the polymer layer. The electrophoretic particle can be produced by radical polymerization using a polymerization initiator in a state where a pigment particle and monomer components are present in a solvent. The electrophoretic particle can be used in a microcapsule and a sheet for electrophoretic display, as well as an electrophoretic display device and an electronic equipment.