Inventor

TAKEUCHI NOBUTAKA

JP75 patents

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

TAKEUCHI NOBUTAKA

RICOH KK

Image forming apparatus including preselected range between charge injection layer and voltage potential

Developer container, developer supplying unit, and image forming apparatus

Image forming apparatus including a developer replenishing device for a two-ingredient type developer

Image forming apparatus

Image forming apparatus including diamond-like or amorphous structure containing hydrogen surface protection layer

Image forming apparatus having a diamond-like structure surface protection layer on a photoconductive layer

Image forming apparatus having a developing device with a magnet brush

Image forming apparatus having a developer carrier capable of preventing toner adhesion

Image forming apparatus

Developing device, and process unit and image forming apparatus using the developing device

Developing apparatus having improved agitation effect

Image forming apparatus

Image forming apparatus including an electric field having an oscillation component between an image carrier and a developer carrier

Developing method and a developing device for image forming apparatus

Developing device and image forming apparatus including the same

Image forming apparatus and image forming method

Method and apparatus for image forming effectively detecting deterioration of developer

Method and apparatus for image forming capable of effectively recycling toner

Developing device and process cartridge for an image forming apparatus

Image forming apparatus having a developing device with a magnet brush

Method and device for developing a latent image and image forming apparatus using the same

Image forming apparatus and method of adjusting charge bias

Image forming apparatus with toner density control

Image forming device including a toner pattern forming unit

Image forming apparatus and method of controlling an image quality

Image forming apparatus effectively conducting a process control

Image forming apparatus and image density control method

Image forming apparatus including a developer replenishing device for a two-ingredient type developer

Image forming apparatus and toner concentration controlling method

Image formation apparatus and process cartridge including a trickle development system and a cleanerless system

Image forming method and apparatus having a unit for conveying toner and carrier particles from a cleaning unit to a developing unit

Developing unit and image forming apparatus

Developing apparatus for image forming apparatus

Image density control method and image forming apparatus

Developing unit and image forming apparatus which forces consumption of toner

Developing device and process cartridge for an image forming apparatus

Method and apparatus for image forming capable of accurately detecting displacement of transfer images and image density

Image forming apparatus and process cartridge therefore having a cleaner section which stores unused developer

RICOH CO LTD

Image forming apparatus and image density control method

Image forming apparatus and image density control method

Image forming apparatus and image density control method

SPITLER NICHOLAS

Console lid slide rail attachment

Console storage retention structure

TAKEUCHI NOBUTAKA

Image forming apparatus that performs parameter correction processing according to an image density in a predetermined region

Engine cooling device

ISHIBASHI HITOSHI

Image forming apparatus capable of reducing a lengthy duration of an adjustment control

Image forming apparatus capable of efficient toner concentration control

KOJIMA PRESS KOGYO KK

Oil separator for blowby gas

ARAKI YUKARI

Cooling apparatus for internal combustion engine, method of controlling the same, and hybrid vehicle including the same

TANAKA KAYOKO

Optical sensor and image forming apparatus