Inventor

IMAMURA TSUYOSHI

JP36 patents

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

IMAMURA TSUYOSHI

RICOH KK

Image forming apparatus and developing apparatus preventing uneven image density

Image forming apparatus and developing device with improved self toner density control

Image forming apparatus

Developing device with improved developer circulation and toner density control

Image forming apparatus having a detachable cartridge including a photoconductive drum with axis shaft having a minimal rotational eccentricity, and a method of assembling the image forming apparatus

Developing device and magnet roller for developing device

Developing device and developing roller therefor

Developing device and developing roller therefor

Cylindrical structural body for use in an image forming apparatus and method of producing the same

Developing roller of monocomponent developing system

Method and apparatus for image forming capable of performing a stable image development

Developing device and an image forming apparatus including the same

Developing device using a developing roller and image forming apparatus including the same

Long magnet, production method thereof, magnet roller and image forming device

Development magnet roller, development device, process cartridge and image forming apparatus

Developing device and process cartridge with predetermined magnetic force for an image forming apparatus

Developer-carrying member having improved transportability, a developing unit, a process cartridge and an image forming apparatus

Developer holding member, development device, process cartridge, image forming apparatus and method of manufacturing hollow body

Developing roller, developing apparatus, process cartridge, and image formation apparatus

Image forming apparatus and developing device therefor

Magnet compound material to be compression molded, a molded elongate magnetic, a magnet roller, a developing agent-carrying body, a developing apparatus and an image-forming apparatus

NIPPON PAINT CO LTD

Liquid developer

Continuous polymerization method and apparatus

Continuous polymerization method and apparatus

Aqueous coating composition

Method of preparing microcapsules

Aqueous crosslinked polymer particles and their production

RICOH CO LTD

Magnet roller and method for the same, magnetic particle-support member, development device, process cartridge, and image forming apparatus

Method of manufacturing a hollow body used in an image forming apparatus

Magnetic particle carrying device, and developing unit, process cartridge, and image forming apparatus using the same, and surface treatment method of the same

MITSUBISHI PETROCHEMICAL CO

Inorganic filler containing propylene polymer compositions

Electrically conductive inorganic filler containing propylene polymer compositions

KOMATSU MFG CO LTD

Working machine and method of measuring work amount of working machine

ABE HIROYA

Magnetic particle carrying device, and developing unit, process cartridge, and image forming apparatus using the same, and surface treatment method of the same

IMAMURA TSUYOSHI

Magnetic roller and manufacturing method thereof, developer carrier, development device, processing cartridge, and image forming apparatus

KAMIYA NORIYUKI

Development roller including a development sleeve, surface treatment device that treats an outer surface of the development sleeve and wire member that roughens the outer surface of the development sleeve