Inventor
SHIMODA MASAKATSU
JP8 patents
Patents
8 patentsUS5492784AFeb 20, 1996
Positively-chargeable single-layered type electrophotographic photoconductor
RICOH KK106 citations97
US5486438AJan 23, 1996
Electrophotographic photoconductor
RICOH KK25 citations92
US5350653ASep 27, 1994
Electrophotographic photoconductor
RICOH KK28 citations92
US5387487AFeb 7, 1995
Electrophotographic photoconductor
RICOH KK19 citations80
US5595852AJan 21, 1997
Organosilicon compound, producing method thereof and toner and dry-type developer using the same
RICOH KK14 citations73
US5441844AAug 15, 1995
Optical information recording medium using bisazo or trisazo compounds
RICOH KK6 citations72
US5312906AMay 17, 1994
Optical information recording media and bisazo compounds for use therein
RICOH KK4 citations61
US6120962ASep 19, 2000
Organic silicone quaternary ammonium salt, producing method thereof, and toner and dry-type developer using the same for developing latent electrostatic images
RICOH KK0 citations50