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. 03, 2016
Filed:
Jun. 03, 2015
Hisashi Kikuchi, Kanagawa, JP;
Kazuhiko Watanabe, Tokyo, JP;
Takaaki Tawada, Kanagawa, JP;
Eisuke Shimizu, Kanagawa, JP;
Hisashi Kikuchi, Kanagawa, JP;
Kazuhiko Watanabe, Tokyo, JP;
Takaaki Tawada, Kanagawa, JP;
Eisuke Shimizu, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A charging roller to apply voltage to a target to charge the target has a surface having a color set in one of a range according to CIE L*a*b* color space and a range according to CIE XYZ color space, and the range according to CIE L*a*b* color space is defined as 32.6≦L*≦50.9, 0.51≦a*≦1.12, and 6.0≦b*≦8.4; and the range according to CIE XYZ color space is defined as 8.8≦X≦21.0, 9.1≦Y≦21.3, and 5.7≦Z≦11.8.