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. 08, 2012
Filed:
Dec. 04, 2007
Hitoshi Yamamoto, Chino, JP;
Harunobu Komatsu, Matsumoto, JP;
Mitsuo Kushino, Inagawa-cho, JP;
Tomoyuki Kuwamoto, Nara, JP;
Teruki Matsuhita, Suita, JP;
Hitoshi Yamamoto, Chino, JP;
Harunobu Komatsu, Matsumoto, JP;
Mitsuo Kushino, Inagawa-cho, JP;
Tomoyuki Kuwamoto, Nara, JP;
Teruki Matsuhita, Suita, JP;
Nippon Shokubai Co., Ltd., Osaka, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
The microcapsules for electrophoretic display devices according to the present invention each enclose a dispersion containing electrophoretic particles and a solvent in a shell having an inner shell made of a mercapto group-containing amino resin and an outer shell made of an epoxy resin. Alternatively, the microcapsules for electrophoretic display devices according to the present invention each have a capsule strength of 0.6 MPa or higher. These microcapsules are produced by dispersing a dispersion containing electrophoretic particles and a solvent as a core substance in a water-based medium, and subsequently forming at least one shell on the surface of the core substance. These microcapsules can be used, as their applications, for sheets for electrophoretic display devices, electrophoretic display devices using the sheets, and electronic equipments using the electrophoretic display devices.