Inventor

MURAYAMA KAZUNARI

JP70 patents

⚠️ This page may combine multiple inventors who share the name “MURAYAMA KAZUNARI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MURAYAMA KAZUNARI

CANON KK

Image forming apparatus detachably mounting a process cartridge having developing roller movable to contact and be spaced from a photosensitive drum

Driving force transmission mechanism, image forming apparatus equipped with such a mechanism, and process unit of such an apparatus

Process cartridge, mounting mechanism therefor and electrophotographic image forming apparatus

Process cartridge, unit, and electrophotographic image forming apparatus

Process cartridge, electric contact and electrophotographic image forming apparatus

Driving force transmission mechanism, image forming apparatus equipped with such a mechanism, and process unit of such an apparatus

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, load producing member and electrophotographic image forming apparatus

Electrophotographic image forming apparatus to which a process cartridge is detachably mountable and process cartridge comprising cartridge drum positioning portion or recess

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

Space securing member, developing device, charging device and process cartridge

Process cartridge and electrophotographic image forming apparatus

Process cartridge, mounting mechanism therefor and electrophotographic image forming apparatus

Remanufacturing method for process cartridge

Process cartridge, mounting method of electrophotographic photosensitive drum and replacing method of the photosensitive drum

Process cartridge, positioning mechanism therefor and electrophotographic image forming apparatus

Process cartridge and electrophotographic image forming apparatus regulating the positions of creases on a flexible member in accordance with pivotal movement of a support member

Developer agitating member

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

Process cartridge and electrophotographic image forming apparatus having a main assembly in which a cartridge coupling member is engageable with a main assembly coupling member to receive a driving force

Electrophotographic apparatus having plural image forming modes, and a process cartridge applied to such electrophotographic apparatus

Process cartridge and image forming apparatus

Process cartridge, positioning mechanism therefor and electrophotographic image forming apparatus

Developing apparatus

Electrophotographic apparatus having plural image forming modes, and a process cartridge applied to such electrophotographic apparatus

Cleaning apparatus and process cartridge

Method for attaching electrostatic photosensitive drum method for replacing electrophotographic photosensitive drum and process cartridge

Method of adjusting the mounting of cleaning member, process cartridge and image forming apparatus

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

Process cartridge and image forming apparatus

Process cartridge and electrophotographic image forming apparatus

Toner cartridge

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

Developing apparatus having developer carrying screw with a plurality of inclination angles

Image forming apparatus

Image forming apparatus with developing apparatus and method thereof

Image forming apparatus

Developing device, process cartridge and electrophotographic image forming apparatus

Developing device, process cartridge and electrophotographic image forming apparatus

Cleaning apparatus equipped with brush roller, process cartridge, and image forming apparatus

Cleaning apparatus for cleaning an image carrier, process cartridge having a cleaning apparatus for removing remaining developer on an image carrier, and image forming apparatus having a cleaning member for removing remaining developer on an image carrier

Electrophotographic image forming apparatus to which a plurality of process cartridges are detachably mountable by using a moving guide and an opening and closing member

Electrophotographic image forming apparatus, and process cartridge

MURAYAMA KAZUNARI

Electrophotographic image forming apparatus and process cartridge mounted thereto having contacts electrically connecting with an electrical contact

Electrophotographic image forming apparatus and process cartridge with electrical contacts that urge developer roller to photosensitive drum

YOSHIMURA AKIRA

Process cartridge and image forming apparatus

Process cartridge having a member with a force receiving end movable to a position away from a cartridge housing

NITTANI SUSUMU

Process cartridge and image forming apparatus