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. 18, 1989
Filed:
Dec. 23, 1987
Applicant:
Inventors:
Yoshio Yamada, Takatsuki, JP;
Mitsuaki Hashiyama, Otsu, JP;
Assignees:
Toyo Tire & Rubber Co., Ltd., Osaka, JP;
Ricoh Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355 15 ; 355 / ; 118652 ; 430125 ; 152565 ;
Abstract
The present invention provides a cleaning blade for use in electrophotographic copying machines, facsimile machines, printers or the like which is characterized in that it has a double-layer structure and comprises a contact member made of a poly(urethane)ureamide polymer and to be held in contact with a toner image bearing member, and a support member for the contact member having the same hardness or substantially the same hardness as the contact member and lower than the contact member in glass transition temperature.