Nobuharu Hoshi

Process cartridge including a seal member formed from a liquid-foam material

Electrophotographic image forming apparatus to which a process cartridge is detachably mountable and process cartridge having a supporting member for rotatably supporting a developing roller at a position away from the center of rotation thereof

Process cartridge having first and second cartridge guiding portions and an electrophotographic image forming apparatus to which the process cartridge is attached

PROCESS CARTRIDGE DETACHABLY MOUNTABLE TO A MAIN ASSEMBLY OF AN ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS COMPRISING MEANS FOR ROTATING A CHARGING UNIT IF FIRST AND SECOND ROTATIONAL DIRECTIONS AND THE APPARATUS MOUNTING SUCH A PROCESS CARTRIDGE

Image forming apparatus including process cartridge having elastic sealing members interposed between frames

Developing device and process cartridge comprising first and second sealing members and electrophotographic image forming apparatus comprising a developing device comprising first and second sealing members

Process cartridge and assemblying method therefor

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

Process cartridge, assembling method and electrophotographic image forming apparatus

Process cartridge having light guides and memory member, and electrophotographic image forming apparatus to which such cartridge is mountable