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. 17, 2016
Filed:
Aug. 06, 2015
Sachiko Takeda, Kanagawa, JP;
Shigeru Hashiura, Kanagawa, JP;
Kenji Ohta, Kanagawa, JP;
Asae Kamata, Kanagawa, JP;
Sachiko Takeda, Kanagawa, JP;
Shigeru Hashiura, Kanagawa, JP;
Kenji Ohta, Kanagawa, JP;
Asae Kamata, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A polyimide seamless belt for an image forming apparatus, which contains: polyimide containing a segment derived from aromatic diamine, and a segment derived from aromatic tetracarboxylic acid; and two types of carbon black, which are high-structure carbon black capable of imparting high conductivity, and acidic carbon black, where the two types of the carbon black are dispersed in the polyimide seamless belt, wherein the polyimide seamless belt has surface resistivity of 10Ω/□ or less.