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. 27, 2009
Filed:
Mar. 29, 2005
Norihiko Kaga, Kodaira, JP;
Toshiaki Arai, Funabashi, JP;
Norihiko Kaga, Kodaira, JP;
Toshiaki Arai, Funabashi, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
Particles for display media used for an information display device, wherein the display media are sealed between two opposed substrates, at least one of which is transparent and wherein the display media, to which an electrostatic field is applied, are made to move so as to display information such as an image or the like, having compound particles of mother particles and child particles, which are embedded in the surface layer of the mother particles and whose surfaces are exposed. Consequently, particles for display media, which are used for an information display device, wherein child particles are not dissociated under a reverse durability test, where rewriting is repeated, and primary performance can be maintained during the reverse durability test are provided. An information display panel and an information display device using the particles for display media are also provided.