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. 25, 2003
Filed:
Jul. 27, 2001
Masaru Hibino, Ibaraki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A developing device includes a developing container containing a developer having non-magnetic toner and magnetic carriers. A developer carrying member bears and carries the developer contained in the developing container. A magnetic field generating device generates a magnetic field provided in the developer carrying member, wherein an electrostatic latent image formed on an image bearing member is developed with a magnetic brush, which is formed on the developer carrying member by the magnetic field generating device. The image bearing member and the developer carrying member move in opposite directions at a closest portion therebetween. A peak position of a magnetic force Fr generated by the magnetic field generating device in a direction vertical to a surface of the developer carrying member is disposed in the vicinity of the closest portion and downstream in a rotation direction of the developer carrying member from the closest portion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile