Inventor · disambiguated record
Hiroshi Ikuno
Also filed as: IKUNO HIROSHI
47 granted patents·11 pending applications·1,434 citations·filing 1993–2014
98Inventor score
Top patents by PatentIndex Score
58 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
- 0298US6432596B2Electrophotographic photoreceptor and image forming method and apparatus using the photoreceptorRICOH KK·Filed 2001·Granted Aug 13, 2002·102 cites·30 claims
- 0398US6030733AElectrophotographic photoconductor with water vapor permeabilityRICOH KK·Filed 1999·Granted Feb 29, 2000·133 cites·2 claims
- 0498US5871876AElectrophotographic photoconductorRICOH KK·Filed 1997·Granted Feb 16, 1999·157 cites·11 claims
- 0597US6641964B2Electrophotographic photoreceptor, method for manufacturing the photoreceptor, and image forming method and apparatus using the photoreceptorRICOH KK·Filed 2001·Granted Nov 4, 2003·80 cites·24 claims
- 0697US6151468AElectrophotographic photoconductorRICOH KK·Filed 1999·Granted Nov 21, 2000·105 cites·2 claims
- 0796US7416823B2Electrophotographic photoconductor, and image formation method, image formation apparatus, and process cartridge for image formation apparatus using the sameRICOH KK·Filed 2005·Granted Aug 26, 2008·27 cites·10 claims
- 0895US7361438B2Electrophotographic photoconductor, and image forming process, image forming apparatus and process cartridge for an image forming apparatus using the sameRICOH KK·Filed 2006·Granted Apr 22, 2008·19 cites·35 claims
- 0995US7179573B2Electrophotographic photoconductor, and image forming process, image forming apparatus and process cartridge for an image forming apparatus using the sameRICOH KK·Filed 2004·Granted Feb 20, 2007·46 cites·19 claims
- 1095US7175957B2Electrophotographic photoconductor, and image forming process, image forming apparatus and process cartridge for an image forming apparatus using the sameRICOH KK·Filed 2004·Granted Feb 13, 2007·49 cites·35 claims
- 1195US5350459AOrganic photovoltaic elementRICOH KK·Filed 1993·Granted Sep 27, 1994·150 cites·6 claims
- 1293US6686114B2Electrophotographic image forming method and apparatusRICOH KK·Filed 2002·Granted Feb 3, 2004·47 cites·23 claims
- 1392US6844124B2Electrophotographic photoreceptor, method for manufacturing the photoreceptor, and image forming method and apparatus using the photoreceptorRICOH KK·Filed 2003·Granted Jan 18, 2005·31 cites·9 claims
- 1491US7189487B2Electrophotographic photoreceptor, and electrophotographic apparatus, process cartridge and method using the photoreceptorRICOH KK·Filed 2005·Granted Mar 13, 2007·11 cites·6 claims
- 1590US8440713B2[1]benzothieno[3,2-B][1]benzothiophene compound and method for producing the same, and organic electronic device using the sameGOTO DAISUKE·Filed 2009·Granted May 14, 2013·9 cites·6 claims
- 1690US7399563B2Electrophotographic photoconductor, and image forming process, image forming apparatus and process cartridge for an image forming apparatus using the sameRICOH KK·Filed 2007·Granted Jul 15, 2008·13 cites·19 claims
- 1790US6489073B2Method and device for developing electrostatic latent imagesRICOH KK·Filed 2001·Granted Dec 3, 2002·34 cites·18 claims
- 1886US5525447AElectrophotographic photoconductorRICOH KK·Filed 1994·Granted Jun 11, 1996·31 cites·6 claims
- 1983US9143261B2Optical moduleHITACHI METALS LTD·Filed 2014·Granted Sep 22, 2015·6 cites·6 claims
- 2083US9037067B2Image forming apparatus and process cartridgeIKUNO HIROSHI·Filed 2013·Granted May 19, 2015·4 cites·5 claims
- 2183US5656406AElectrophotographic photoconductor with amorphous carbon overlayerRICOH KK·Filed 1995·Granted Aug 12, 1997·33 cites·2 claims
- 2282US8588630B2Image forming apparatusKURIMOTO EIJI·Filed 2012·Granted Nov 19, 2013·3 cites·10 claims
- 2382US8193304B2Benzobisthiazole compound, benzobisthiazole polymer, organic film including the compound or polymer and transistor including the organic filmYAMAMOTO SATOSHI·Filed 2009·Granted Jun 5, 2012·4 cites·6 claims
- 2482US5870657ACharging apparatus for photoconductor with ozone adsorption featuresRICOH KK·Filed 1996·Granted Feb 9, 1999·30 cites·15 claims
- 2580US6998209B2Electrophotographic photoreceptor, and electrophotographic apparatus, process cartridge and method using the photoreceptorRICOH KK·Filed 2003·Granted Feb 14, 2006·15 cites·13 claims
- 2680US5840455AElectrophotographic photoconductorRICOH KK·Filed 1996·Granted Nov 24, 1998·30 cites·18 claims
- 2779US8043773B2Image bearing member, image forming apparatus and process cartridgeRICOH CO LTD·Filed 2007·Granted Oct 25, 2011·5 cites·10 claims
- 2879US5452061AImage formation apparatusRICOH KK·Filed 1993·Granted Sep 19, 1995·25 cites·4 claims
- 2976US8535863B2Electrophotographic photoreceptor, and image forming apparatus and process cartridge using sameASANO TOMOHARU·Filed 2011·Granted Sep 17, 2013·2 cites·11 claims
- 3075US7449272B2Electrophotographic photoreceptor and method of preparing the photoreceptor, and image forming method, image forming apparatus and process cartridge therefor using the photoreceptorRICOH KK·Filed 2005·Granted Nov 11, 2008·4 cites·18 claims
- 3174US8939656B2Optical moduleHITACHI CABLE·Filed 2012·Granted Jan 27, 2015·3 cites·12 claims
- 3274US8084170B2Electrophotographic photoconductor, electrophotographic process cartridge containing the same and electrophotographic apparatus containing the sameKAMI HIDETOSHI·Filed 2008·Granted Dec 27, 2011·4 cites·4 claims
- 3374US7279260B2Electrophotographic photoconductor having a crosslinked resin layer and method of preparing an electrophotographic photoconductorRICOH KK·Filed 2003·Granted Oct 9, 2007·12 cites·8 claims
- 3473US8669030B2Electrophotographic photoreceptor, and image forming method and apparatus using the sameFUJIWARA YUKIO·Filed 2007·Granted Mar 11, 2014·4 cites·18 claims
- 3572US7629103B2Photoconductor, manufacturing method thereof, image forming process and image forming apparatus using photoconductor, and process cartridgeRICOH KK·Filed 2005·Granted Dec 8, 2009·4 cites·14 claims
- 3667US7295788B2Image forming apparatus and process cartridgeRICOH KK·Filed 2005·Granted Nov 13, 2007·3 cites·10 claims
- 3766US9122183B2Electrophotographic photoreceptor, image forming apparatus and process cartridgeTOSHINE TETSUYA·Filed 2013·Granted Sep 1, 2015·1 cites·13 claims
- 3866US7718333B2Electrophotographic photoconductor and method of preparing sameRICOH KK·Filed 2007·Granted May 18, 2010·2 cites·9 claims
- 3965US8652717B2Image bearing member and image forming method, image forming apparatus, and process cartridge using the sameSHIMOYAMA KEISUKE·Filed 2011·Granted Feb 18, 2014·1 cites·14 claims
- 4065US8647798B2Photoreceptor, process cartridge and image forming apparatusASANO TOMOHARU·Filed 2012·Granted Feb 11, 2014·1 cites·10 claims
- 4161US7858278B2Electrophotographic photoreceptor, and image forming apparatus and process cartridge using the electrophotographic photoreceptorRICOH CO LTD·Filed 2007·Granted Dec 28, 2010·2 cites·16 claims
- 4260US7556903B2Electrophotographic photoreceptor, and image forming method, apparatus and process cartridge therefor using the photoreceptorRICOH KK·Filed 2004·Granted Jul 7, 2009·7 cites·20 claims
- 4359US8043777B2Electrophotographic photoconductor, process cartridge, and image forming apparatusRICOH CO LTD·Filed 2008·Granted Oct 25, 2011·1 cites·9 claims
- 4456US8148038B2Image bearing member, process cartridge, image forming apparatus and method of forming image bearing memberFUJIWARA YUKIO·Filed 2008·Granted Apr 3, 2012·1 cites·12 claims
- 4556US8119317B2Electrophotographic photoreceptor, and process cartridge and image forming apparatus using the photoreceptorKAMI HIDETOSHI·Filed 2008·Granted Feb 21, 2012·1 cites·7 claims
- 4655US9298113B2Electrophotographic photoconductor, image forming apparatus, and process cartridgeISHIDA TOSHIHIRO·Filed 2014·Granted Mar 29, 2016·0 cites·19 claims
- 4746US9170558B2Image forming apparatus and process cartridge including a cleaning blade which includes a cured compositionIKUNO HIROSHI·Filed 2014·Granted Oct 27, 2015·0 cites·8 claims
- 4841US2009269103A1Photoreceptor, process cartridge and image forming apparatusRICOH KK·Filed 2009·Application pending·0 cites
- 4940US2008085459A1Electrophotographic photoconductor, and electrophotographic apparatusKAMI HIDETOSHI·Filed 2007·Application pending·0 cites
- 5040US2014064810A1Image forming apparatus and process cartridgeIWAMOTO TAKAFUMI·Filed 2013·Application pending·0 cites
Showing the top 50 of 58 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Hiroshi Ikuno files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →