Inventor

KUMASAKA TAKAO

JP21 patents

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

KUMASAKA TAKAO

HITACHI LTD

Developing apparatus and color electrophotographic apparatus using the same

Method of multi-color recording using electro-photography process and apparatus therefor wherein mixed colors generation is prevented

Corona deterioration and moisture compensation for transfer unit in an electrophotographic apparatus

Electrophotographic image transfer member, electrophotographic image transfer device and electrophotographic recording apparatus

Duplex reproducing apparatus with device for cooling and conveying fused toner image

Developing apparatus and picture image forming apparatus

Radiant heat fixing apparatus

Magnetic brush with bristle height equal to developing gap

Electrophotographic recording apparatus

Developing device and multi-color recording apparatus

Electrophotographic recording method and apparatus with non-contact development

Electrical power supply, fusing apparatus and recording apparatus using the same

Recording apparatus having a flash fusing apparatus

Image formation method and image formation apparatus

Developing apparatus for an electrophotographic machine

Multi-color electrophotograph apparatus

Flash fusing apparatus for reducing occurrence of spots on recording paper

Image recording method including determining a gap between a photosensitive medium and a developing roller and apparatus therefor

Electrophotographic recording apparatus having a plurality of developing devices which can be changed over

RICOH PRINTING SYS LTD

Image recording device and an image recording system

HITCAHI LTD

Multi-color image forming apparatus having arrangements for reducing ozone generation