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:
May. 20, 2003
Filed:
Nov. 13, 2001
Applicant:
Inventors:
Makoto Nakamura, Kanagawa-ken, JP;
Yoshiyuki Takano, Kanagawa-ken, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 1/508 ;
U.S. Cl.
CPC ...
G03G 1/508 ;
Abstract
A development roller includes a core shaft, an elastic layer coating the core shaft, and a surface layer coating the elastic layer. The surface layer has a resistance smaller than a resistance of the elastic layer. And, the development roller has an entire volume resistance smaller than a volume resistance of the elastic layer.
Nakamura, Makoto. (2003). Method and apparatus for image forming capable of effectively performing development (U.S. Patent No. 6567638). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6567638
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile