Coating apparatus, method for producing electrophotographic photosensitive member and method for mass-producing electrophotographic photosensitive members

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United States of America Patent

PATENT NO 9146578
APP PUB NO 20120045569A1
SERIAL NO

13207748

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Abstract

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Provided is a coating apparatus that suppresses the phenomenon in which a semisolid film is retained on the upper-end edge portion of the coating bath even after the circulation of the coating liquid is resumed, resulting in the occurrence of coating defects, and a method for producing an electrophotographic photosensitive member using the coating apparatus. The upper-end portion of the coating bath includes a first upper-end surface, a second upper-end surface that is positioned below the first upper-end surface and has an outer diameter larger than that of the first upper-end surface, and a step surface that interconnects the first upper-end surface and the second upper-end surface. The coating liquid is capable of overflowing from the coating bath, flowing along the second upper-end surface, and flowing while wetting the whole area of the step surface when the circulation is resumed.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kawase, Shoji Nagahama, JP 10 79
Shimada, Akira Suntou-gun, JP 117 1950

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