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. 04, 2006
Filed:
Mar. 31, 2005
Katsuo Sakai, Kanagawa-ken, JP;
Masanori Horike, Kanagawa-ken, JP;
Yohichiro Miyaguchi, Kanagwa-ken, JP;
Nobuaki Kondoh, Kanagawa-ken, JP;
Katsuo Sakai, Kanagawa-ken, JP;
Masanori Horike, Kanagawa-ken, JP;
Yohichiro Miyaguchi, Kanagwa-ken, JP;
Nobuaki Kondoh, Kanagawa-ken, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A developing device including a latent image supporter. Powder is adhered on the latent image supporter to develop a latent image on the latent image supporter and a transporting member is arranged opposite to the latent image supporter. A plurality of electrodes are formed in the transporting member for generating a traveling-wave electric field to move the powder, and n-phase voltages are applied to the electrodes of the transporting member to form an electric field in a first direction so that the powder moves towards the latent image supporter at an image portion of the latent image and in a second direction so that the powder moves in a direction opposite to the latent image supporter at a non-image portion of the latent image.