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:
Nov. 05, 2002
Filed:
Jun. 18, 2001
Applicant:
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 4/514 ; B29C 5/316 ;
U.S. Cl.
CPC ...
B29C 4/514 ; B29C 5/316 ;
Abstract
An elastic blade regulates the layer thickness of a toner used in the developing device of an image forming apparatus such as an electrophotographic apparatus. The elastic blade is manufactured by providing a metal layer consisting of a rolled metal. The metal layer has a warped shape including a convex side caused by rolling the metal layer. A rubber layer is provided only on a surface of the metal layer at the convex side thereof.