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. 14, 1998
Filed:
Jul. 07, 1995
Applicant:
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03G / ;
U.S. Cl.
CPC ...
399277 ;
Abstract
A magnet roller including a columnar magnet with a through bore having a cross-section defining a thickness of the columnar magnet which is uneven along a circumference thereof, wherein a most thick portion of the columnar magnet has a strongest magnetic pole. The columnar magnet may be made from a resin material containing a magnetic powder. The bore cross-section may be non-circular, D-shaped, or rectangular. An insertion member may be inserted into the through bore to fixedly support the magnet roller.
Hibi, Takashi. (1998). Magnet roller and developing device (U.S. Patent No. 5740509). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5740509
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile