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:
Mar. 06, 2001
Filed:
Jun. 04, 1998
Tetsuya Kitamura, Gifu, JP;
Shigeru Kagayama, Owariasahi, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
An aperture electrode assembly having an insulating sheet, made of polyimide, in which a plurality of apertures having a diameter of 80 &mgr;m are formed in a line. A control electrode, made of copper leaf having a thickness of 8 &mgr;m, surrounds each of the apertures on the insulating sheet. A coating layer containing carbon particles as a conductive material is formed so as to cover both the control electrodes and the surface of the insulating sheet. As the material of the coating layer, the coating liquid is prepared by mixing the carbon particles in an insulating binder made of an organic synthetic resin, preferably, of polyimide resin. The coating liquid is applied onto the insulating sheet and the control electrodes, and baked at a temperature lower than 300° C., preferably between 200° C. and 280° C., for several minutes. A back coating layer is provided to the back surface of the insulating sheet. The back coating layer is formed by baking the coating liquid layer at a temperature of 450° C. separately from the insulating sheet and, then, the baked coating layer is adhered to the back surface of the insulating sheet using an adhesive.