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. 24, 2007
Filed:
Apr. 20, 2005
Yoshiki Takei, Nagano, JP;
Yoshiki Takei, Nagano, JP;
Seiko Epson Corporation, , JP;
Abstract
Electrophoretic display devices and contactless communication media are provided. A display electrode pattern, a first voltage application circuit to apply a voltage between the display electrode pattern and a transparent electrode, and a wiring pattern that electrically conducts the first voltage application circuit and the display electrode pattern are provided on the side of the back surface of a substrate. Also, a BG electrode pattern, a loop pattern of a predetermined height, and the transparent electrode are provided on the side of the surface of the substrate. Multiple electrophoretic particles and a dispersion medium to disperse the electrophoretic particles are enclosed inside the loop pattern and between the substrate and the transparent electrode. A voltage is applied between the transparent electrode and the display electrode pattern by the first voltage application circuit thereby causing the electrophoretic particles to migrate in the dispersion medium to display a desired image.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile