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Patent Searching and Data


Title:
CONDUCTIVE MEMBER, PROCESS CARTRIDGE, AND IMAGE FORMING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/203227
Kind Code:
A1
Abstract:
The present invention provides a conductive member for electrophotography that can be used as a charging member capable of preventing a ghost image by minimizing discharge voids. The conductive member for electrophotography has a conductive support and a conductive layer provided on the support. The conductive layer has a matrix including a first rubber and a plurality of domains scattered in the matrix. The domain includes a second rubber and an electronic conductive agent. With respect to impedances measured by applying an alternating voltage with an amplitude of 1 V to the conductive layer under a specific environment with a frequency varying between 1.0 × 10-2 Hz and 1.0 × 107 Hz, in a log-log plot where the horizontal axis shows frequencies and the vertical axis shows impedances, the inclination of the plots near the high frequencies is between −0.8 and −0.3, inclusive, and the impedances near the low frequencies are 1.0 × 103 to 1.0 × 107 Ω.

Inventors:
KIKUCHI YUICHI (JP)
NISHIOKA SATORU (JP)
TAKASHIMA KENJI (JP)
YAMAUCHI KAZUHIRO (JP)
KURACHI MASAHIRO (JP)
FURUKAWA TAKUMI (JP)
WATANABE HIROAKI (JP)
TERADA KENYA (JP)
TOMOMIZU YUYA (JP)
NAKAZAWA TOSHIMITSU (JP)
Application Number:
JP2019/016300
Publication Date:
October 24, 2019
Filing Date:
April 16, 2019
Export Citation:
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Assignee:
CANON KK (JP)
International Classes:
G03G15/02; F16C13/00; G03G15/08; G03G15/16
Foreign References:
JP2002003651A2002-01-09
JP2005321764A2005-11-17
JP2016018154A2016-02-01
US20120237863A12012-09-20
Attorney, Agent or Firm:
OKABE Yuzuru et al. (JP)
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