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. 29, 2008
Filed:
Sep. 08, 2005
Applicants:
Yasuhisa Ehara, Kanagawa, JP;
Hiroshi Yoshizawa, Kanagawa, JP;
Inventors:
Yasuhisa Ehara, Kanagawa, JP;
Hiroshi Yoshizawa, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 21/18 (2006.01); G03G 15/01 (2006.01); G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
In accordance with the present invention, a transparent or semitransparent window is formed in a developing device or a process cartridge to allow one to see the inside of the developing device via the window from the outside. The window may preferably be formed in the top wall of the developing unit or that of the process cartridge.