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:
Jul. 17, 2007
Filed:
Jun. 25, 2004
Takayuki Koike, Kanagawa, JP;
Hajime Oyama, Chiba, JP;
Hiromitsu Takagaki, Kanagawa, JP;
Nobutaka Takeuchi, Kanagawa, JP;
Takayuki Koike, Kanagawa, JP;
Hajime Oyama, Chiba, JP;
Hiromitsu Takagaki, Kanagawa, JP;
Nobutaka Takeuchi, Kanagawa, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
A developing device includes a developer carrier that carries a developer and a developer restricting member that restricts a layer thickness of the developer on the developer carrier. The developer carrier carries the developer in such a manner that a thickness Tup of a layer of the developer when the layer passes through the developer restricting member and a gap Gd between the developer restricting member and the developer carrier satisfy an inequality 7<Tup/Gd<20.