Developing sleeve and developing device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10018943
SERIAL NO

15444534

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A developing sleeve includes first axially extending groove portions which satisfy D1≥2R and W1≥2R, where 2R is a volume-average particle size of a carrier, D1 is a maximum depth of each first groove portion and W1 is a width an opening of each first groove portion with respect to a circumferential direction of the developing sleeve, and second axially extending groove portions. Each second groove portion satisfies D2<2R, where 2R is the volume-average particle size of the carrier and D2 is a maximum depth of each second groove portion. Each or a plurality of the second groove portions are disposed between the first groove portions with respect to the circumferential direction of the developing sleeve.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sakamaki, Tomoyuki Tokyo, JP 50 337

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