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.:

US 6909869 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 21, 2005

Filed:

Jun. 02, 2003
Applicants:

Shinya Yamamoto, Shizuoka, JP;

Tetsuya Kobayashi, Shizuoka, JP;

Yasunari Watanabe, Shizuoka, JP;

Yasuomi Aso, Shizuoka, JP;

Masato Koyanagi, Shizuoka, JP;

Inventors:

Shinya Yamamoto, Shizuoka, JP;

Tetsuya Kobayashi, Shizuoka, JP;

Yasunari Watanabe, Shizuoka, JP;

Yasuomi Aso, Shizuoka, JP;

Masato Koyanagi, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G015/08 ;
U.S. Cl.
CPC ...
Abstract

In a developing apparatus, the developing apparatus includes a developer carrying member which carries a developer and has elasticity, and a developer regulating member which regulates an amount of the developer carried on the developer carrying member, the developer regulating member having a supported part supported by a support member and a contact part which is in contact with the developer carrying member, in which the contact part has a ten point average surface roughness of larger than 2.0 μm and a maximum height surface roughness of smaller than an average particle diameter of the developer. Therefore, an amount of the developer carried on the developer carrying member can be regulated to be uniform.


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