Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9372419
APP PUB NO 20150205218A1
SERIAL NO

14418868

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Abstract

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Provided are an electrophotographic photosensitive member in which a residual potential hardly increases at the time of image formation, a pattern memory hardly occurs, and the crack of a conductive layer hardly occurs, and a process cartridge and an electrophotographic apparatus each including the electrophotographic photosensitive member. To this end, the conductive layer of the electrophotographic photosensitive member contains a titanium oxide particle coated with tin oxide doped with phosphorus, a tin oxide particle doped with phosphorus, and a binding material, and when a total volume of the conductive layer is represented by VT, a total volume of the titanium oxide particle coated with tin oxide doped with phosphorus in the conductive layer is represented by V1P, and a total volume of the tin oxide particle doped with phosphorus in the conductive layer is represented by V2P, the VT, the V1P, and the V2P satisfy the following expressions: 2≦{(V2P/VT)/(V1P/VT)}×100≦25 and 15≦{(V1P/VT)+(V2P/VT)}×100≦45.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujii, Atsushi Yokohama, JP 107 1200
Matsuoka, Hideaki Mishima, JP 50 443
Nakamura, Nobuhiro Numazu, JP 132 1662
Shida, Kazuhisa Kawasaki, JP 51 620
Tomono, Hiroyuki Numazu, JP 45 493
Tsuji, Haruyuki Yokohama, JP 30 488

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