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. 02, 1993
Filed:
Nov. 21, 1991
Applicant:
Inventors:
Minoru Yoshida, Tokyo, JP;
Kouji Hirano, Yokosuka, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
118644 ; 355245 ;
Abstract
A developing apparatus includes a developing roller having a conductive layer, and a developer layer forming blade for forming a developer layer on the developing roller. The developer layer forming blade is formed of a layered member having a charging layer, and the conductive layer of the developing roller has wear-resistance equal to or higher than that of the charging layer of the developer layer forming blade.
Yoshida, Minoru. (1993). Developing apparatus having developing agent layer forming blade (U.S. Patent No. 5191170). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5191170
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile