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. 15, 1986
Filed:
Apr. 23, 1984
Applicant:
Inventors:
Assignee:
Mita Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355 / ; 355 / ; 118689 ; 118691 ;
Abstract
The gap between a magnetic sensor and a fitting member supporting the magnetic sensor and the surface of the magnetic sensor are coated with thin nonmagnetic coating materials having small surface friction to prevent the developer from being introduced into the gap and adhered therein. Smooth flow of the developer is maintained, and the stable and accurate detection of the condition or ratio of the developer is ensured.