Inventor
NAGATSUKA IKUTAROH
JP32 patents
⚠️ This page may combine multiple inventors who share the name “NAGATSUKA IKUTAROH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJI XEROX CO LTD
30 patentsUS5155000AOct 13, 1992
Toner composition containing TiO2 particles
FUJI XEROX CO LTD24 citations93
US7920112B2Apr 5, 2011
Electronic paper system, image processing apparatus for electronic paper system storage medium storing image processing program, and image writing method using image processing apparatus
FUJI XEROX CO LTD20 citations92
US5752141AMay 12, 1998
Rotating type developing apparatus
FUJI XEROX CO LTD36 citations91
US6908036B2Jun 21, 2005
Display and record medium and information writer
FUJI XEROX CO LTD19 citations84
US5439772AAug 8, 1995
Magnetic toner and process for producing the same
FUJI XEROX CO LTD14 citations74
US5110703AMay 5, 1992
Carrier for developer
FUJI XEROX CO LTD11 citations74
US4965160AOct 23, 1990
Electrophotographic developer carrier particles coated with binder resin
FUJI XEROX CO LTD7 citations74
US4868083ASep 19, 1989
Developer carrier and process for producing the same
FUJI XEROX CO LTD9 citations74
US4861694AAug 29, 1989
Process for producing carriers for developer
FUJI XEROX CO LTD8 citations74
US4859558AAug 22, 1989
Composition with fatty acid bisamide powder developer
FUJI XEROX CO LTD7 citations74
US4791041ADec 13, 1988
Magnetic carrier particles for electrophotographic developer
FUJI XEROX CO LTD13 citations74
US5629120AMay 13, 1997
Electrostatic image developing carrier and electrostatic image developer
FUJI XEROX CO LTD11 citations73
US5178984AJan 12, 1993
Electrophotographic toner
FUJI XEROX CO LTD12 citations73
US5176979AJan 5, 1993
Electrophotographic toner having a surface treated silica particle
FUJI XEROX CO LTD13 citations73
US5106715AApr 21, 1992
Toner composition with polyethylene and inorganic external additive
FUJI XEROX CO LTD17 citations73
US4929528AMay 29, 1990
Coated carrier for developer
FUJI XEROX CO LTD11 citations72
US4902597AFeb 20, 1990
Carrier for electrophotographic developer
FUJI XEROX CO LTD9 citations72
US7576760B2Aug 18, 2009
Multi-level optical writer
FUJI XEROX CO LTD2 citations63
US7455216B2Nov 25, 2008
Printed-matter issuing managing system, printed-matter verifying device and contents managing device
FUJI XEROX CO LTD5 citations63
US4912004AMar 27, 1990
Carrier for developer
FUJI XEROX CO LTD4 citations63
US4871639AOct 3, 1989
Carrier for electrophotographic developer
FUJI XEROX CO LTD4 citations63
US7578429B2Aug 25, 2009
System for writing information and method of writing information
FUJI XEROX CO LTD4 citations62
US7533104B2May 12, 2009
Information management system and information management method
FUJI XEROX CO LTD3 citations62
US7225403B2May 29, 2007
Display system with a display having a memory characteristic and a display having no memory characteristic, display method, and display program
FUJI XEROX CO LTD3 citations62
US7219973B2May 22, 2007
Image-forming device and method
FUJI XEROX CO LTD2 citations62
US5013626AMay 7, 1991
Carrier of a magnetic powder dispersed type
FUJI XEROX CO LTD4 citations62
US5059504AOct 22, 1991
Carrier for developer
FUJI XEROX CO LTD3 citations61
US7924238B2Apr 12, 2011
Image forming apparatus with members that bring a light emitting device in proximity to a recording medium
FUJI XEROX CO LTD1 citations52
US7857203B2Dec 28, 2010
System for writing information and method of writing information
FUJI XEROX CO LTD0 citations52
US5963765AOct 5, 1999
Method and device for developing an electrostatic latent image based on toner amount and image formation system using the developing device
FUJI XEROX CO LTD0 citations48