Inventor
OBATA TAKATSUGU
JP28 patents
⚠️ This page may combine multiple inventors who share the name “OBATA TAKATSUGU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHARP KK
26 patentsUS7416824B2Aug 26, 2008
Organic photoconductive material electrophotographic photoreceptor and image forming apparatus using the same
SHARP KK63 citations97
US6043428AMar 28, 2000
Photoelectric material using organic photosensitising dyes and manufacturing method thereof
SHARP KK81 citations95
US6210847B1Apr 3, 2001
Crystalline oxotitanylphthalocyanine and electrophotographic photoreceptor using the same
SHARP KK22 citations90
US7175956B2Feb 13, 2007
Organic photoconductive material, electrophotographic photoreceptor comprising the same, and image-forming apparatus
SHARP KK10 citations84
US6291120B1Sep 18, 2001
Electrophotographic photoreceptor and coating composition for charge generating layer
SHARP KK16 citations84
US7727693B2Jun 1, 2010
Electrophotographic photoreceptor, electrophotographic image forming method, and electrophotographic apparatus
SHARP KK2 citations62
US7625681B2Dec 1, 2009
Asymmetric bis-hydroxyenamine compound, electrophotographic photoreceptor and image forming apparatus
SHARP KK3 citations62
US7534539B2May 19, 2009
Electrophotographic photoreceptor and image forming apparatus having the same
SHARP KK5 citations62
US7457565B2Nov 25, 2008
Image forming apparatus
SHARP KK4 citations62
US7402209B2Jul 22, 2008
Apparatus and method for applying coating liquid to cylindrical substrate, and electrophotographic photoreceptor produced by that method and electrophotographic apparatus provided with the same
SHARP KK4 citations62
US7393415B2Jul 1, 2008
Method and apparatus for applying coating liquid to cylindrical substrate and method for producing electrophotographic photoreceptor and electrophotographic photoreceptor produced by the production method
SHARP KK3 citations62
US8003287B2Aug 23, 2011
Electrophotographic photoconductor and image-forming apparatus
SHARP KK0 citations52
US7977020B2Jul 12, 2011
Electrophotographic photoreceptor containing enamine compound, image formation apparatus provided with the same, enamine compound and method for producing the same
SHARP KK1 citations52
US7794907B2Sep 14, 2010
Hydrazone compound, electrophotographic photoreceptor comprising the hydrazone compound, and image forming apparatus equipped with the electrophotographic photoreceptor
SHARP KK1 citations52
US7615326B2Nov 10, 2009
Electrophotographic photoconductor and image forming apparatus
SHARP KK1 citations52
US7563548B2Jul 21, 2009
Amine compound, manufacturing method thereof, electrophotographic photoreceptor using amine compound and image forming apparatus having the same
SHARP KK1 citations52
US6022655AFeb 8, 2000
Photoreceptor for electrophotography, bishydrazone compound and intermediate thereof, and method for producing bishydrazone compound and intermediate thereof
SHARP KK0 citations52
US7754403B2Jul 13, 2010
Electrophotoconductor and image forming apparatus
SHARP KK0 citations41
US7560217B2Jul 14, 2009
Method of forming electrophotographic photoreceptor and method of drying coating film
SHARP KK0 citations41
US7364823B2Apr 29, 2008
Amine compound, electrophotographic photoreceptor using the amine compound and image forming apparatus having the same
SHARP KK0 citations41
US8354211B2Jan 15, 2013
Electrophotographic photoreceptor, image forming apparatus and process cartridge
SHARP KK0 citations40
US7985519B2Jul 26, 2011
Aromatic polycarbonate, electrophotographic photoreceptor, and image forming apparatus
SHARP KK0 citations40
US7781137B2Aug 24, 2010
Method and apparatus for producing electrophotographic photoreceptor
SHARP KK0 citations40
US7803507B2Sep 28, 2010
Electrophotographic photoreceptor and image forming apparatus including the same
SHARP KK0 citations39
US7588871B2Sep 15, 2009
Electrophotographic photoreceptor and image forming apparatus provided with the same
SHARP KK0 citations39
US7429439B2Sep 30, 2008
Electrophotographic photoreceptor and image forming apparatus provided with the same
SHARP KK0 citations38