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:
Sep. 29, 1992
Filed:
May. 09, 1991
Toshiaki Kakutani, Nagano, JP;
Nobuyuki Yanase, Nagano, JP;
Hitoshi Fukushima, Nagano, JP;
Toshiya Takahata, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An electrophoretic imaging device includes an electrosensitive layer; an insulating body arranged to confront the electrosensitive layer; a developing solution filled between the electrosensitive layer and the insulating body, with the developing solution prepared by dispersing two or more kinds of electrosensitive toners into an insulating solvent; a mechanism for applying a voltage between the electrosensitive layer and the insulating body; a mechanism for irradiating a toner selection light which causes at least one kind of electrosenstivie toner to be selectively sensitizxed; and an electrosensitive layer exposing mechanism for causing image data to be photosensitively written to the electrosensitive layer. In such an electrophoretic imaging device, the electrosensitive layer is made of at least two layers, a light-shielding layer and a photoelectric charge generating layer, from a side at which the electrosensitive layer is in contact with the developing solution, and the toner selection light irradiating mechanism is provided with a filter mechanism.