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:
Jun. 21, 1977
Filed:
Jun. 25, 1974
Isoji Takahashi, Asaka, JA;
Fuji Photo Film Co., Ltd., Minami-ashigara, JA;
Abstract
An electrostatic image forming method, which uniformly charging the surface of an electrostatic image forming material comprising (1) surface portions each having an insulating surface and occupying the surface of an insulating support in a patternlike manner and (2) conductive layer portions each having a conductive surface and formed on the remaining areas of the surface of the insulating support in a manner that the conductive layer portions are electrically isolated from the earth: grounding the surfaces of the charged conductive layer portions to the earth so as to remove the charges from the charged conductive layer portions so that the charges in the surfaces of the insulating surface portions remain as the desired electrostatic image.