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. 27, 1999
Filed:
May. 02, 1995
Tetsuya Kitamura, Gifu, JP;
Masaki Takatsugi, Seto, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
An aperture electrode member includes an insulating sheet having a plurality of apertures formed in a row therein, and a control electrode formed on the insulating sheet on the upper side of each of the apertures. On the face of the insulating sheet opposite to the face on which the apertures are formed, a coating layer serving as an oxide fine particle layer is formed at portions of insulating sheet at which the insulating sheet contacts with toner particle carried on the toner carrying roller. A coating layer can be formed by dispersing carbon serving as an antistatic agent and oxide fine particle silica serving as a fluidity increasing agent into a binder, applying the mixture to the insulating sheet to form a film and baking to harden it.