Inventor · disambiguated record
Katsuhiro Nagayama
Also filed as: NAGAYAMA KATSUHIRO
35 granted patents·5 pending applications·479 citations·filing 1988–2017
97Inventor score
Top patents by PatentIndex Score
40 records- 0191US5075731ATransfer roller deviceSHARP KK·Filed 1991·Granted Dec 24, 1991·56 cites·12 claims
- 0285US7657194B2Image forming apparatus and toner supply control program for the sameSHARP KK·Filed 2007·Granted Feb 2, 2010·8 cites·12 claims
- 0385US5019862AHeat control for photoreceptorSHARP KK·Filed 1988·Granted May 28, 1991·29 cites·8 claims
- 0484US6215968B1Image forming apparatus with half-tone density controlSHARP KK·Filed 2000·Granted Apr 10, 2001·33 cites·26 claims
- 0584US5164782AElectrophotographic copying apparatusSHARP KK·Filed 1991·Granted Nov 17, 1992·30 cites·13 claims
- 0682US9327978B2Method for producing non-graphitizable carbon material, non-graphitizable carbon material, negative electrode material for lithium-ion secondary battery, and lithium-ion secondary batteryJFE CHEMICAL CORP·Filed 2013·Granted May 3, 2016·3 cites·4 claims
- 0779US6223007B1Image forming apparatusSHARP KK·Filed 2000·Granted Apr 24, 2001·19 cites·6 claims
- 0876US5854149APaper-made stampable sheet, light-weight stampable sheet shaped body and method of producing light-weight stampable shaped bodyKAWASAKI STEEL CORP SUMITOMO C·Filed 1996·Granted Dec 29, 1998·45 cites·34 claims
- 0975US5908524AMethod for producing fiber-reinforced thermoplastic resin molded article laminated with skin materialSUMITOMO CHEMICAL CO·Filed 1996·Granted Jun 1, 1999·37 cites·16 claims
- 1074US5987272AImage forming apparatus including image quality compensation meansSHARP KK·Filed 1998·Granted Nov 16, 1999·25 cites·10 claims
- 1172US7880927B2Image forming apparatus, image forming method, program, and recording mediumSHARP KK·Filed 2007·Granted Feb 1, 2011·5 cites·14 claims
- 1271US5107303ACleaning structure for moving image retainer for use in an image forming deviceSHARP KK·Filed 1990·Granted Apr 21, 1992·23 cites·11 claims
- 1370US5332517AMethod for producing carbonaceous powder for electrorheological fluidKAWASAKI STEEL CO·Filed 1992·Granted Jul 26, 1994·24 cites·5 claims
- 1468US5826136AImage stabilizing method for use in an image forming apparatusSHARP KK·Filed 1997·Granted Oct 20, 1998·19 cites·7 claims
- 1567US8078069B2Image forming apparatus and image forming methodOTSUKA MASAYUKI·Filed 2008·Granted Dec 13, 2011·3 cites·7 claims
- 1667US5103266AElectrophotographic apparatus and method of cleaning the sameSHARP KK·Filed 1991·Granted Apr 7, 1992·16 cites·11 claims
- 1766US5953554AImage forming apparatus with a toner density measuring functionSHARP KK·Filed 1997·Granted Sep 14, 1999·18 cites·24 claims
- 1865US7920801B2Image forming apparatus and method for controlling image forming apparatusSHARP KK·Filed 2009·Granted Apr 5, 2011·2 cites·12 claims
- 1965US5343282AColor balance adjusting apparatus for full-color copierSHARP KK·Filed 1993·Granted Aug 30, 1994·15 cites·4 claims
- 2063US8264755B2Image forming apparatus and image forming methodNAGAYAMA KATSUHIRO·Filed 2009·Granted Sep 11, 2012·2 cites·9 claims
- 2162US9735421B2Method for producing amorphous carbon particles, amorphous carbon particles, negative electrode material for lithium ion secondary battery, and lithium ion secondary batteryJFE CHEMICAL CORP·Filed 2014·Granted Aug 15, 2017·0 cites·14 claims
- 2262US7889365B2Image forming apparatusSHARP KK·Filed 2008·Granted Feb 15, 2011·1 cites·19 claims
- 2360US5981046ASound absorbing componentSUMITOMO CHEMICAL CO·Filed 1996·Granted Nov 9, 1999·27 cites·9 claims
- 2459US5200783ABlack image density correcting deviceSHARP KK·Filed 1991·Granted Apr 6, 1993·12 cites·9 claims
- 2558US9379384B2Method for producing non-graphitizable carbon material, negative electrode material for lithium ion secondary battery, and lithium ion secondary batteryJFE CHEMICAL CORP·Filed 2014·Granted Jun 28, 2016·0 cites·1 claims
- 2657US2011148006A1Fibre-production device and fibre-production methodJFE CHEMICAL CORP·Filed 2009·Application pending·0 cites
- 2756US10657428B2Image processing unit, image forming apparatus, image processing method, and storage mediumSHARP KK·Filed 2017·Granted May 19, 2020·0 cites·8 claims
- 2855US8625162B2Image processing apparatus and image forming apparatus with a toner density correction functionYASUOKA NORIHIDE·Filed 2011·Granted Jan 7, 2014·1 cites·8 claims
- 2953US5734948AImage stabilizerSHARP KK·Filed 1996·Granted Mar 31, 1998·11 cites·29 claims
- 3053US2017309895A1Amorphous carbon particlesJFE CHEMICAL CORP·Filed 2017·Application pending·0 cites
- 3152US10170752B2Method for producing amorphous carbon particle, amorphous carbon particles, negative electrode material for lithium ion secondary batteries, and lithium ion secondary batteryJFE CHEMICAL CORP·Filed 2013·Granted Jan 1, 2019·0 cites·15 claims
- 3246US6160972AImage forming apparatusSHARP KK·Filed 1999·Granted Dec 12, 2000·7 cites·16 claims
- 3344US8019242B2Image forming apparatus and image forming method for suppressing fluctuation of formed imagesSHARP KK·Filed 2008·Granted Sep 13, 2011·0 cites·11 claims
- 3439US5204729AFull color copying machineSHARP KK·Filed 1991·Granted Apr 20, 1993·5 cites·16 claims
- 3539US2011182604A1Image forming apparatus, image density control method, control program and recording mediumOTSUKA MASAYUKI·Filed 2011·Application pending·0 cites
- 3637US2006204257A1Image forming apparatusSHARP KK·Filed 2006·Application pending·0 cites
- 3736US2002037451A1Carbon substrate, anode for lithium ion rechargeable battery and lithium ion rechargeable batteryKAWASAKI STEEL CO·Filed 2001·Application pending·0 cites
- 3834US8725016B2High speed image forming apparatus and image forming method thereofNAGAYAMA KATSUHIRO·Filed 2011·Granted May 13, 2014·0 cites·7 claims
- 3933US4910111AElectrophotographic photoreceptor comprising amorphous silicon layer coated with amorphous inorganic materialSHARP KK·Filed 1988·Granted Mar 20, 1990·2 cites·3 claims
- 4030US5055877ACopying apparatus with moveable screen and methodSHARP KK·Filed 1990·Granted Oct 8, 1991·1 cites·20 claims
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