Inventor · disambiguated record
Toshio Koike
Also filed as: KOIKE TOSHIO
91 granted patents·6 pending applications·1,039 citations·filing 1979–2022
99Inventor score
Top patents by PatentIndex Score
97 records- 0197US7272354B2Cleaning unit and image forming apparatus having multiple cleaning bladesRICOH KK·Filed 2006·Granted Sep 18, 2007·27 cites·46 claims
- 0296US7373101B2Method and apparatus for image forming and effectively applying lubricant to an image bearing memberRICOH KK·Filed 2005·Granted May 13, 2008·24 cites·34 claims
- 0396US7313347B2Cleaning device, process cartridge, image forming apparatus and tonerRICOH KK·Filed 2005·Granted Dec 25, 2007·32 cites·31 claims
- 0495US7266324B2Charging device, and process cartridge and image forming apparatus using the charging deviceRICOH KK·Filed 2006·Granted Sep 4, 2007·18 cites·15 claims
- 0593US7826786B2Image forming apparatus, lubricant applying device, transfer device, process cartridge, and tonerRICOH KK·Filed 2005·Granted Nov 2, 2010·17 cites·13 claims
- 0693US7292816B2Method and apparatus for electrophotographic image forming capable of effectively removing residual toner, a cleaning mechanism used therein, a process cartridge including the cleaning mechanism used in the apparatus, and toner used in the apparatusRICOH KK·Filed 2005·Granted Nov 6, 2007·16 cites·52 claims
- 0792US7493075B2Cleaning device, process cartridge and image forming apparatusRICOH KK·Filed 2007·Granted Feb 17, 2009·13 cites·15 claims
- 0892US7477862B2Charged device, cleaning device, process cartridge, toner, and image-forming device that uses theseRICOH KK·Filed 2005·Granted Jan 13, 2009·13 cites·15 claims
- 0992US7376380B2Image forming apparatus, process cartridge, and tonerRICOH COMPANY LIMTED·Filed 2006·Granted May 20, 2008·15 cites·10 claims
- 1092US7218877B2Charging device, and process cartridge and image forming apparatus including the charging device using the sameRICOH KK·Filed 2006·Granted May 15, 2007·12 cites·16 claims
- 1192US5660792AAutomatic solid phase extraction device with interchangeable nozzle holder headMORITEX CORP·Filed 1995·Granted Aug 26, 1997·119 cites·6 claims
- 1291US7062194B2Charging device, and process cartridge and image forming apparatus including the charging deviceRICOH KK·Filed 2004·Granted Jun 13, 2006·31 cites·17 claims
- 1391US6990305B2Charging device using a charge roller and image forming apparatus including the sameRICOH KK·Filed 2005·Granted Jan 24, 2006·10 cites·15 claims
- 1490US8000627B2Charging device, process cartridge, image forming apparatus, and tonerRICOH CO LTD·Filed 2005·Granted Aug 16, 2011·10 cites·41 claims
- 1590US6873814B2Developing device using a two-ingredient type developer and image forming apparatus including the sameRICOH KK·Filed 2002·Granted Mar 29, 2005·36 cites·18 claims
- 1689US7672635B2Method and apparatus for image forming and effectively applying lubricant to an image bearing memberRICOH KK·Filed 2008·Granted Mar 2, 2010·8 cites·18 claims
- 1789US7333744B2Image forming apparatus that charges a photosensitive member by superimposing an alternate current bias voltage on a direct current bias voltage as the charge bias voltageRICOH KK·Filed 2005·Granted Feb 19, 2008·11 cites·15 claims
- 1889US7149465B2Cleaning unit, process cartridge, image forming apparatus, and tonerRICOH KK·Filed 2004·Granted Dec 12, 2006·26 cites·22 claims
- 1989US7110696B2Cleaning unit, process cartridge, and image forming apparatusRICOH KK·Filed 2003·Granted Sep 19, 2006·27 cites·47 claims
- 2088US11906356B2Spectral-characteristic acquisition apparatus and method of obtaining spectral characteristicsKOIKE TOSHIO·Filed 2022·Granted Feb 20, 2024·1 cites·20 claims
- 2188US8428488B2Charging device, process cartridge, image forming apparatus, and tonerMIZUISHI HARUJI·Filed 2011·Granted Apr 23, 2013·7 cites·17 claims
- 2288US7139504B2Charging device, and process cartridge and image forming apparatus using the charging deviceRICOH KK·Filed 2004·Granted Nov 21, 2006·24 cites·15 claims
- 2388US4907792ASheet guide adjusting apparatusIWATSU ELECTRIC CO LTD·Filed 1988·Granted Mar 13, 1990·46 cites·6 claims
- 2487US7386257B2Imaging apparatus, and toner and process cartridge used in the imaging apparatusRICOH KK·Filed 2006·Granted Jun 10, 2008·7 cites·3 claims
- 2586US10635043B2Powder container and image forming apparatusRICOH CO LTD·Filed 2019·Granted Apr 28, 2020·1 cites·19 claims
- 2686US7680429B2Charging device including charging roller and cleaning rollerRICOH KK·Filed 2008·Granted Mar 16, 2010·7 cites·19 claims
- 2786US7645112B2Transport apparatus, control method for the same, and vacuum processing systemULVAC INC·Filed 2005·Granted Jan 12, 2010·12 cites·14 claims
- 2886US7228099B2Cleaning device for cleaning a surface of an image support bodyRICOH KK·Filed 2004·Granted Jun 5, 2007·21 cites·28 claims
- 2986US6856774B2Developing device including magnetic member provided on toner-scattering restraining device and image forming apparatus including the developing deviceRICOH KK·Filed 2002·Granted Feb 15, 2005·26 cites·15 claims
- 3085US10520856B2Developing device, process cartridge, and image forming apparatus incorporating sameRICOH CO LTD·Filed 2018·Granted Dec 31, 2019·2 cites·16 claims
- 3185US10394186B2Powder container and image forming apparatusTAKAMI NOBUO·Filed 2018·Granted Aug 27, 2019·1 cites·10 claims
- 3285US7050741B2Imaging apparatus, and toner and process cartridge used in the imaging apparatusRICOH KK·Filed 2004·Granted May 23, 2006·20 cites·16 claims
- 3384US10203650B2Powder container and image forming apparatusTAKAMI NOBUO·Filed 2018·Granted Feb 12, 2019·1 cites·6 claims
- 3484US8254823B2Waste toner storage unit and image forming apparatus using sameNAGASHIMA HIROYUKI·Filed 2008·Granted Aug 28, 2012·7 cites·25 claims
- 3583US10852689B2Powder container and image forming apparatusRICOH CO LTD·Filed 2020·Granted Dec 1, 2020·1 cites·9 claims
- 3682US8577257B2Process unit and image forming apparatus including sameARAI YUJI·Filed 2011·Granted Nov 5, 2013·3 cites·19 claims
- 3782US7953363B2Lubricant applicator and image forming apparatus including sameRICOH CO LTD·Filed 2009·Granted May 31, 2011·11 cites·19 claims
- 3881US7572093B2Transport apparatus, control method for the same, and vacuum processing systemULVAC INC·Filed 2005·Granted Aug 11, 2009·8 cites·13 claims
- 3981US7477856B2Method and apparatus for image forming capable of effectively preventing resonance of frequenciesRICOH KK·Filed 2005·Granted Jan 13, 2009·6 cites·17 claims
- 4081US5305650AAutomatic preparation apparatusAJINOMOTO KK·Filed 1991·Granted Apr 26, 1994·71 cites·9 claims
- 4179US10564592B2Image forming apparatus including a removable component which is held by holderRICOH CO LTD·Filed 2019·Granted Feb 18, 2020·1 cites·9 claims
- 4279US7692120B2Transport robot and transport apparatusULVAC INC·Filed 2007·Granted Apr 6, 2010·6 cites·20 claims
- 4378US10048644B2Powder container and image forming apparatusTAKAMI NOBUO·Filed 2015·Granted Aug 14, 2018·1 cites·23 claims
- 4478US7844198B2Electrophotographic photoreceptor, photoreceptor supporting device, imaging device and process cartridgeRICOH CO LTD·Filed 2009·Granted Nov 30, 2010·5 cites·7 claims
- 4577US10409196B2Image forming apparatus including developing devices, developing containers, and changeable conveyance paths between the developing devices and the developing containersRICOH CO LTD·Filed 2018·Granted Sep 10, 2019·1 cites·13 claims
- 4676US8676107B2Lubricant applying device, process cartridge, and image forming apparatusOKAMOTO MICHIYA·Filed 2011·Granted Mar 18, 2014·2 cites·12 claims
- 4776US7539451B2Image forming apparatus and tonerRICOH KK·Filed 2005·Granted May 26, 2009·5 cites·10 claims
- 4876US6673316B1Synthesis experiment automating system, liquid separating treating apparatus and reaction vesselSUMITOMO CHEMICAL CO·Filed 1997·Granted Jan 6, 2004·53 cites·8 claims
- 4975US7295796B1Image forming apparatus having a temporary toner holding device and a toner collecting deviceRICOH KK·Filed 2003·Granted Nov 13, 2007·14 cites·37 claims
- 5074US8787802B2Developing device, process cartridge, and image-forming apparatusHATTORI YOSHIO·Filed 2011·Granted Jul 22, 2014·2 cites·18 claims
Showing the top 50 of 97 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →