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:
Oct. 20, 1992
Filed:
Oct. 16, 1990
Applicant:
Inventor:
Shinkichi Takahashi, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
118651 ; 118654 ; 355247 ; 355261 ;
Abstract
A developing apparatus or a color image forming apparatus using the developing apparatus, includes a developer carrying member for carrying electrically charged developer, an electrode plate of elastic material having a side contacted to the developer on the developer carrying member, a vibratory voltage source for forming a vibratory electric field between the developer carrying member and the elastic electrode plate. The vibratory electric field is effective to pop and scatter the developer on the developer carrying member from the neighborhood of the electrode plate into the developing zone, to develop the latent image on the image bearing member.