Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit

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United States of America Patent

PATENT NO 9874846
SERIAL NO

15455624

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A drum unit includes a photosensitive drum having an axis L1, a drum flange provided at an end of the photosensitive drum, and a coupling member having an axis L2. The coupling member includes (i) a first end portion connected to the drum flange, (ii) a second end portion including at least one projection, and (iii) a connecting portion connecting the first end portion and the second end portion. The coupling member is movable between (i) a first position in which a tip of the at least one projection is a first distance away from the photosensitive drum as measured in the direction of the axis L1 and (ii) a second position in which the tip of the at least one projection is a second distance away from the photosensitive drum as measured in the direction of the axis L1.

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Patent Owner(s)

Patent OwnerAddress
CANON KABUSHIKI KAISHAJAPAN

International Classification(s)

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  • 2017 Application Filing Year
  • G03G Class
  • 2629 Applications Filed
  • 2246 Patents Issued To-Date
  • 85.44 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances201720182019202020212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Miyabe, Shigeo Numazu, JP 154 12496
Morioka, Masanari Numazu, JP 130 5116
Ueno, Takahito Mishima, JP 163 8972

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Patent Citation Ranking

  • 21 Citation Count
  • G03G Class
  • 97.37 % this patent is cited more than
  • 7 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges3811116962963111201 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7091 - 100100 +05010015020025030035040045050055060065070075080085090095010001050110011501200

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