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. 07, 2009
Filed:
Jul. 24, 2007
Takanori Shoji, Higashimurayama, JP;
Taichi Kobayashi, Kodaira, JP;
Shinichi Kita, Saitama, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
An information display panel wherein display media consists of at least one kind of particle and having optical reflectance and charging characteristics are sealed between two opposed substrates, at least one of which is transparent. The display media, to which an electrostatic field is applied, are made to move so as to display information. A member for securing a gap space is formed in the outer and inner peripheral sides of a sealing agent placement part provided in the outer edge portion of an display area of the panel. The member provided in the outer peripheral side is provided evenly in each side and densely in each corner portion. The member provided in the inner peripheral side is provided with chamfered corners in each corner portion, so that the member for securing the gap space does not contact to the sealing agent placement part.