Inventor

MURAKAMI EISAKU

JP51 patents

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

MURAKAMI EISAKU

RICOH KK

Image forming apparatus, process cartridge, and waste toner recovery device

Developing device for an image forming apparatus

Method of coating a toner conveyor roller

Developing device for an image forming apparatus

Developing device for an electrophotographic recording apparatus including bias control of a toner supplying roller

Image forming apparatus with bias control to prevent undesirable toner deposition

Developing device for an image forming apparatus

Developing device having the lengths of two toner transporting rollers and an image bearing member in specific relationships

Developing device for an image forming apparatus

Developing device having seals between a toner transport roller and the toner hopper which prevent toner leakage and scattering

Toner, and devices for electrostatically depositing a uniform application thereof

Toner conveyor roller and image forming apparatus having the same

Developing device for an image forming apparatus

Developing device for an image forming apparatus

Device for electrostatically developing a latent image on an image carrier

Developing apparatus for electronic photographic recording equipment, having two developer transfer rollers

Charging device, and process cartridge and image forming apparatus using the charging device

Image forming apparatus, process cartridge, and waste toner recovery device

Charging device, and process cartridge and image forming apparatus using the charging device

Imaging apparatus, and toner and process cartridge used in the imaging apparatus

Even bias applying transfer roller

Toner cartridge including toner outlet openings and toner collection openings arranged substantially in a single array

Developing device for an image forming apparatus and toner cartridge for replenishing a fresh toner to the developing device

Transfer device and image forming apparatus

Method and apparatus for image forming capable of effectively performing a charging process

Image forming apparatus, process cartridge, and waste toner recovery device

Cleaning unit and image forming apparatus having multiple cleaning blades

Cleaning device for cleaning a surface of an image support body

Cleaning unit, process cartridge, image forming apparatus, and toner

Cleaning unit, process cartridge, and image forming apparatus

Charging device, and process cartridge and image forming apparatus including the charging device

Electrophotographic recording apparatus configured to switch a bias voltage in a developing unit

Developing device for an image forming apparatus

Image forming apparatus and process cartridge having a detachable unit body having a lubricant applying unit and image carrier mounted thereon

Image forming apparatus having a temporary toner holding device and a toner collecting device

Charging device, and process cartridge and image forming apparatus including the charging device using the same

Cleaning unit, process cartridge, and image forming apparatus

Image forming apparatus and process cartridge including flexible member

Cleaning device, process cartridge and image forming apparatus

Imaging apparatus, and toner and process cartridge used in the imaging apparatus

Method and apparatus for image forming capable of removing residual toner without using a toner cleaning system, process cartridge for use in the apparatus and toner used for the image forming

Image forming apparatus and process cartridge for use in the same

Cleaning unit, process cartridge, image forming apparatus, and toner

Electrophotographic recording apparatus having toner delivering member with large wetting angle

Developing device for an image forming apparatus

Gloss providing sheet and image formation apparatus

Image forming apparatus and process cartridge with a cleaner for removing toner from an image bearing member

Charging member, process cartridge including the same, and image forming apparatus including the same

RICOH CO LTD

Development device, process cartridge, and image forming apparatus using the development device

YASUTOMI KEI

Image forming apparatus for controlling glossiness of an image