Inventor
ENDOH SHUICHI
JP19 patents
Patents
19 patentsUS6033818AMar 7, 2000
Developing device for an image forming apparatus
RICOH KK53 citations96
US5879752AMar 9, 1999
Method of coating a toner conveyor roller
RICOH KK62 citations96
US5845183ADec 1, 1998
Developing device for an image forming apparatus
RICOH KK52 citations96
US5826144AOct 20, 1998
Developing device for an electrophotographic recording apparatus including bias control of a toner supplying roller
RICOH KK68 citations96
US5768665AJun 16, 1998
Image forming apparatus with bias control to prevent undesirable toner deposition
RICOH KK58 citations96
US5708942AJan 13, 1998
Developing device for an image forming apparatus
RICOH KK53 citations96
US5697026ADec 9, 1997
Developing device having the lengths of two toner transporting rollers and an image bearing member in specific relationships
RICOH KK62 citations96
US5625440AApr 29, 1997
Developing device having seals between a toner transport roller and the toner hopper which prevent toner leakage and scattering
RICOH KK64 citations96
US5625438AApr 29, 1997
Toner, and devices for electrostatically depositing a uniform application thereof
RICOH KK40 citations96
US5625441AApr 29, 1997
Developing device for an image forming apparatus
RICOH KK54 citations96
US5617191AApr 1, 1997
Toner conveyor roller and image forming apparatus having the same
RICOH KK84 citations96
US5489747AFeb 6, 1996
Developing device for an image forming apparatus
RICOH KK73 citations96
US5486909AJan 23, 1996
Developing device for an image forming apparatus
RICOH KK56 citations96
US5666625ASep 9, 1997
Device for electrostatically developing a latent image on an image carrier
RICOH KK62 citations95
US5689782ANov 18, 1997
Developing apparatus for electronic photographic recording equipment, having two developer transfer rollers
RICOH KK64 citations94
US5552870ASep 3, 1996
Developing device for an image forming apparatus
RICOH KK39 citations92
US4788570ANov 29, 1988
Thin film developing device
RICOH KK50 citations92
US5610693AMar 11, 1997
Developing device for an image forming apparatus
RICOH KK16 citations74
US5548383AAug 20, 1996
Developing device for controlling pressure between toner conveying units
RICOH KK7 citations74