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US Patent 12072668 Drum unit, cartridge and coupling member

Overview Structured Data Issues Contributors Activity

Is a

Patent

Date Filed

August 3, 2023

Date of Patent

August 27, 2024

Patent Application Number

18229722

Patent Citations

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US Patent 7477865 Process cartridge and image forming apparatus

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US Patent 9146500 Developer accommodating unit

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US Patent 9152081 Developer accommodating container, process cartridge, electrophotographic image forming apparatus

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US Patent 9207581 Developer accommodating unit, developing device, process cartridge and image forming apparatus

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US Patent 9213267 Developing device frame unit, developing device, process cartridge, and manufacturing method of the developing device frame unit

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US Patent 9285707 Developer accommodating unit with a urging member for urging a flexible member

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US Patent 9291942 Developer accommodating unit, process cartridge and image forming apparatus

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US Patent 9302801 Developer accommodating unit, manufacturing method thereof, process cartridge and image forming apparatus

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US Patent 9304440 Developer accommodating unit, process cartridge and electrophotographic image forming apparatus

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US Patent 9304441 Developer accommodating container, developer accommodating unit, process cartridge and image forming apparatus

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Patent Inventor Names

Makoto Hayashida

Tetsuo Uesugi

Takashi Yano

Koji Yamaguchi

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

12072668

Patent Primary Examiner

CPC Code

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