Inventor · disambiguated record
Masahiko Shakuto
Also filed as: SHAKUTO MASAHIKO
37 granted patents·4 pending applications·707 citations·filing 1998–2017
97Inventor score
Top patents by PatentIndex Score
41 records- 0199US6366751B1Image forming apparatus including preselected range between charge injection layer and voltage potentialRICOH KK·Filed 2000·Granted Apr 2, 2002·182 cites·57 claims
- 0298US6625409B2Image forming apparatus having a diamond-like structure surface protection layer on a photoconductive layerRICOH KK·Filed 2002·Granted Sep 23, 2003·70 cites·24 claims
- 0397US6654579B2Image forming apparatus including diamond-like or amorphous structure containing hydrogen surface protection layerRICOH KK·Filed 2002·Granted Nov 25, 2003·65 cites·22 claims
- 0496US7383013B2Image forming apparatus using a contact or a proximity type of charging system including a protection substance on a moveable body to be chargedRICOH KK·Filed 2007·Granted Jun 3, 2008·18 cites·5 claims
- 0596US7369807B2Cleaner, and process cartridge and image forming apparatus using the cleanerRICOH KK·Filed 2005·Granted May 6, 2008·25 cites·43 claims
- 0696US6799012B2Cleaning device and image forming apparatus using the sameRICOH KK·Filed 2002·Granted Sep 28, 2004·72 cites·25 claims
- 0794US7620357B2Image forming apparatus with obtuse-edge cleaning bladeRICOH KK·Filed 2006·Granted Nov 17, 2009·18 cites·17 claims
- 0894US7610008B2Cleaning device, and process unit and image forming apparatus including the cleaning deviceRICOH KK·Filed 2006·Granted Oct 27, 2009·18 cites·20 claims
- 0993US7693475B2Lubricant supplying device, cleaning device, process cartridge, and image forming apparatusRICOH KK·Filed 2007·Granted Apr 6, 2010·17 cites·18 claims
- 1093US7415238B2Cleaning device, process cartridge, and image forming apparatus that include a blade that is pressed against a surface of a rotating member at a surface pressure of 2.0 MPa or moreRICOH KK·Filed 2005·Granted Aug 19, 2008·17 cites·15 claims
- 1193US5937228AImage forming apparatusRICOH KK·Filed 1998·Granted Aug 10, 1999·60 cites·27 claims
- 1292US6987944B2Cleaning device and image forming apparatus using the cleaning deviceRICOH KK·Filed 2002·Granted Jan 17, 2006·40 cites·55 claims
- 1386US7123872B2Cleaning device and method, image forming apparatus, and process cartridgeRICOH KK·Filed 2003·Granted Oct 17, 2006·24 cites·75 claims
- 1485US9091969B2Electrophotographic image forming apparatusYOSHIDA RYUJI·Filed 2014·Granted Jul 28, 2015·4 cites·25 claims
- 1584US8254823B2Waste toner storage unit and image forming apparatus using sameNAGASHIMA HIROYUKI·Filed 2008·Granted Aug 28, 2012·7 cites·25 claims
- 1684US7184699B2Cleaning blade for image formation apparatusRICOH KK·Filed 2004·Granted Feb 27, 2007·21 cites·12 claims
- 1782US7953363B2Lubricant applicator and image forming apparatus including sameRICOH CO LTD·Filed 2009·Granted May 31, 2011·11 cites·19 claims
- 1880US7415236B2Cleaning unit, process cartridge, and image-forming apparatusRICOH KK·Filed 2004·Granted Aug 19, 2008·18 cites·16 claims
- 1978US7844198B2Electrophotographic photoreceptor, photoreceptor supporting device, imaging device and process cartridgeRICOH CO LTD·Filed 2009·Granted Nov 30, 2010·5 cites·7 claims
- 2074US9250593B2Image forming apparatus and image density control method employed by the image forming apparatusMASE RYUSUKE·Filed 2014·Granted Feb 2, 2016·2 cites·12 claims
- 2170US10061226B2Image forming apparatus and image forming methodKAMIHARA KAZUAKI·Filed 2017·Granted Aug 28, 2018·1 cites·23 claims
- 2270US8369770B2Collection container, cleaning unit, and image forming apparatus capable of collecting waste toner efficientlyRICOH CO LTD·Filed 2009·Granted Feb 5, 2013·3 cites·15 claims
- 2370US8041280B2Lubricant applying device, process cartridge, and image forming apparatusRICOH CO LTD·Filed 2009·Granted Oct 18, 2011·3 cites·10 claims
- 2468US8655254B2Lubricant applicator, image forming apparatus, and method of mounting lubricant applicatorARAI YUJI·Filed 2010·Granted Feb 18, 2014·1 cites·18 claims
- 2566US9310714B2Image forming apparatusOZAKI NAOYUKI·Filed 2015·Granted Apr 12, 2016·1 cites·9 claims
- 2665US8027628B2Cleaning device, process cartridge, and image forming apparatusRICOH CO LTD·Filed 2008·Granted Sep 27, 2011·2 cites·20 claims
- 2764US8565661B2Cleaning device including cleaning mechanism having noise reduction mechanism and image forming apparatus incorporating sameOKAMOTO MICHIYA·Filed 2009·Granted Oct 22, 2013·2 cites·19 claims
- 2848US9042748B2Image forming apparatusURAYAMA TAICHI·Filed 2014·Granted May 26, 2015·0 cites·15 claims
- 2948US8090293B2Process cartridge and image forming apparatus employing sameARAI YUJI·Filed 2009·Granted Jan 3, 2012·0 cites·13 claims
- 3046US9513574B2Image forming apparatusSUGIYAMA HIROYUKI·Filed 2014·Granted Dec 6, 2016·0 cites·5 claims
- 3146US9244374B2Image forming apparatusSUGIYAMA HIROYUKI·Filed 2014·Granted Jan 26, 2016·0 cites·9 claims
- 3245US9298125B2Image forming apparatus and image forming methodSUGIYAMA HIROYUKI·Filed 2014·Granted Mar 29, 2016·0 cites·11 claims
- 3345US8391732B2Image forming deviceHONJOH KENJI·Filed 2010·Granted Mar 5, 2013·0 cites·7 claims
- 3442US8185032B2Used toner collection device and image forming apparatusONO HIROSHI·Filed 2008·Granted May 22, 2012·0 cites·5 claims
- 3539US2009022504A1Image forming apparatus, image carrier, and process cartridgeKUWABARA NOBUO·Filed 2008·Application pending·0 cites
- 3637US2002090229A1Image forming apparatusFiled 2001·Application pending·0 cites
- 3737US2002081128A1Image forming apparatusFiled 2001·Application pending·0 cites
- 3836US2005058474A1Cleaning device, process cartridge, and image forming apparatusFiled 2004·Application pending·0 cites
- 3935US9989876B2Image forming apparatus and method for calculating a toner degradation rateMORINAGA MUTSUKI·Filed 2016·Granted Jun 5, 2018·0 cites·20 claims
- 4032US9354588B2Image forming apparatus and image forming method that remove toner from a cleaning blade for an image bearer by inversely rotating the image bearerTAKAHASHI TOMOKO·Filed 2015·Granted May 31, 2016·0 cites·5 claims
- 4130US9285754B2Image forming apparatusNODERA KENTAROH·Filed 2015·Granted Mar 15, 2016·0 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →