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:
Jan. 07, 2014
Filed:
Mar. 15, 2013
Canon Kabushiki Kaisha, Tokyo, JP;
Masaaki Harada, Yokohama, JP;
Keiji Nose, Suntou-gun, JP;
Hiroaki Watanabe, Odawara, JP;
Takumi Furukawa, Susono, JP;
Kenya Terada, Suntou-gun, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The conductive member has a conductive support and a conductive elastic layer. The elastic layer is a mixture containing an electron conductive agent and a binder polymer, or a cured product thereof, and the electron conductive agent contains a carbon black satisfying the following characteristics: (i) an average primary particle diameter is 20 nm or more and 30 nm or less; (ii) a DBP oil absorption is 40 ml/100 g or more and 70 ml/100 g or less, and the total amount of CO and COgenerated by temperature programmed desorption/mass spectrometry is 0.30 mass % or more and 0.80 mass % or less with reference to the carbon black; and (iii) the amount of SOgenerated by the temperature programmed desorption/mass spectrometry is 0.05 mass % or more with reference to the carbon black.