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:
Jul. 27, 2010
Filed:
Feb. 13, 2008
Hitoshi Yamamoto, Chino, JP;
Harunobu Komatsu, Matsumoto, JP;
Mitsuo Kushino, Inagawa-cho, JP;
Tomoyuki Kuwamoto, Nara, JP;
Hitoshi Yamamoto, Chino, JP;
Harunobu Komatsu, Matsumoto, JP;
Mitsuo Kushino, Inagawa-cho, JP;
Tomoyuki Kuwamoto, Nara, JP;
Seiko Epson Corporation, Tokyo, JP;
Nippon Shokubai Co., Ltd., Osaka, JP;
Abstract
The preservation method of microcapsules for electrophoretic display devices according to the present invention includes preserving microcapsules for electrophoretic display devices in a water-based medium having an electric conductivity of 500 μS/cm or lower. The preservation under such conditions makes it possible to preserve microcapsules for electrophoretic display devices over a long period of time without deteriorating their electrophoretic properties. The microcapsules for electrophoretic display devices, which have been preserved by the preservation method of the present invention, can be used, as its applications, for sheets for electrophoretic display devices and electrophoretic display devices using the sheets.