Inventor · disambiguated record
Tatsuya Niimi
Also filed as: NIIMI TATSUYA
68 granted patents·25 pending applications·1,393 citations·filing 1994–2021
99Inventor score
Top patents by PatentIndex Score
93 records- 0198US6326112B1Electrophotographic photoreceptor, and process cartridge and image forming apparatus using the photoreceptorRICOH KK·Filed 2000·Granted Dec 4, 2001·117 cites·18 claims
- 0298US5871876AElectrophotographic photoconductorRICOH KK·Filed 1997·Granted Feb 16, 1999·157 cites·11 claims
- 0397US6641964B2Electrophotographic 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
- 0497US6573016B2Electrophotographic photoconductor, method of manufacturing same and image forming method, image forming apparatus and process cartridge using sameRICOH KK·Filed 2001·Granted Jun 3, 2003·71 cites·45 claims
- 0596US6790572B2Electrophotographic photoreceptor, and image forming method and apparatus using the photoreceptorRICOH KK·Filed 2001·Granted Sep 14, 2004·52 cites·37 claims
- 0696US6576388B2Multilayer electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge using the photoreceptorRICOH KK·Filed 2001·Granted Jun 10, 2003·68 cites·24 claims
- 0795US6558863B2Electrophotographic photoreceptor, electrophotographic image forming method and apparatus using the photoreceptorRICOH KK·Filed 2000·Granted May 6, 2003·59 cites·71 claims
- 0894US6757507B2Image formation apparatus using a dry two-component developer for developmentRICOH KK·Filed 2001·Granted Jun 29, 2004·49 cites·15 claims
- 0994US6653033B1Electrophotographic photoconductor, method of manufacturing same and image forming method, image forming apparatus and process cartridge using sameRICOH KK·Filed 2003·Granted Nov 25, 2003·46 cites·12 claims
- 1093US6902857B2Method for forming electrophotographic image and electrographic deviceRICOH KK·Filed 2002·Granted Jun 7, 2005·48 cites·27 claims
- 1193US6218533B1Method for manufacturing pigment, electrophotographic photoconductor using the pigment and electrophotographic image forming method and apparatus using the photoconductorRICOH KK·Filed 2000·Granted Apr 17, 2001·40 cites·8 claims
- 1293US5853935AElectrophotographic photoconductorRICOH KK·Filed 1998·Granted Dec 29, 1998·63 cites·16 claims
- 1393US5547790AElectrophotographic photoconductor containing polymeric charge transporting material in charge generating and transporting layersRICOH KK·Filed 1994·Granted Aug 20, 1996·47 cites·12 claims
- 1492US6844124B2Electrophotographic 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
- 1591US6858362B2Electrophotographic photoreceptor, and image forming method and apparatus using the photoreceptorRICOH KK·Filed 2003·Granted Feb 22, 2005·24 cites·20 claims
- 1690US7796902B2Image forming condition adjustment control for image forming apparatusRICOH KK·Filed 2009·Granted Sep 14, 2010·11 cites·13 claims
- 1790US6562531B2Electrophotographic photoreceptor, and image forming method and apparatus using the photoreceptorRICOH KK·Filed 2001·Granted May 13, 2003·35 cites·35 claims
- 1890US6516169B2Electrophotographic image forming apparatus having a gap between photoreceptor and charger, and process cartridge thereforRICOH KK·Filed 2001·Granted Feb 4, 2003·34 cites·60 claims
- 1990US5677094AElectrophotographic photoconductorRICOH KK·Filed 1995·Granted Oct 14, 1997·53 cites·49 claims
- 2089US7764906B2Image forming apparatus and image forming methodRICOH KK·Filed 2006·Granted Jul 27, 2010·11 cites·18 claims
- 2189US6132911AMethod for manufacturing pigment, electrophotographic photoconductor using the pigment and electrophotographic image forming method and apparatus using the photoconductorRICOH KK·Filed 1999·Granted Oct 17, 2000·40 cites·8 claims
- 2288US7871747B2Electrophotographic photoconductor having charge blocking and moire preventing layersRICOH CO LTD·Filed 2006·Granted Jan 18, 2011·9 cites·7 claims
- 2388US7670743B2Image forming methodRICOH KK·Filed 2008·Granted Mar 2, 2010·8 cites·38 claims
- 2487US6087055AElectrophotographic photoconductorRICOH KK·Filed 1998·Granted Jul 11, 2000·42 cites·14 claims
- 2586US10584194B2Active energy ray curable liquid composition, method for manufacturing three-dimensional objects, and apparatus for manufacturing three-dimensional objectsIWATA HIROSHI·Filed 2017·Granted Mar 10, 2020·2 cites·12 claims
- 2686US6902858B2Image formation apparatus using a dry two-component developer for developmentRICOH KK·Filed 2004·Granted Jun 7, 2005·21 cites·15 claims
- 2786US5804343AElectrophotographic photoconductorRICOH KK·Filed 1996·Granted Sep 8, 1998·35 cites·14 claims
- 2884US10950143B2Hydrogel structure, blood vessel, internal organ model, practice tool for medical procedure, and method of manufacturing the hydrogel structureNIIMI TATSUYA·Filed 2017·Granted Mar 16, 2021·3 cites·19 claims
- 2984US7824830B2Coating liquid and electrophotographic photoreceptor prepared using the coating liquidRICOH KK·Filed 2005·Granted Nov 2, 2010·5 cites·33 claims
- 3083US10442181B2Hydrogel object and method of manufacturing hydrogel objectIWATA HIROSHI·Filed 2016·Granted Oct 15, 2019·1 cites·8 claims
- 3182US10882245B2Method of manufacturing three-dimensional object, liquid set for manufacturing three-dimensional object, device for manufacturing three-dimensional object, and gel objectIWATA HIROSHI·Filed 2016·Granted Jan 5, 2021·2 cites·14 claims
- 3280US9562020B2Dihydroxy aromatic heterocyclic compoundTAKEDA PHARMACEUTICALS CO·Filed 2015·Granted Feb 7, 2017·4 cites·14 claims
- 3379US9212147B2Dihydroxy aromatic heterocyclic compoundTAKEDA PHARMACEUTICAL·Filed 2012·Granted Dec 15, 2015·6 cites·11 claims
- 3477US10589125B2Bolus and method for producing sameNIIMI TATSUYA·Filed 2018·Granted Mar 17, 2020·1 cites·16 claims
- 3577US7507511B2Electrophotographic photoreceptor, and image forming apparatus and process cartridge therefor using the electrophotographic photoreceptorRICOH KK·Filed 2006·Granted Mar 24, 2009·5 cites·27 claims
- 3677US7186490B1Photosensitive material, electrophotographic photoreceptor using the material, and electrophotographic image forming method and apparatus using the photoreceptorRICOH KK·Filed 2000·Granted Mar 6, 2007·9 cites·14 claims
- 3775US7846635B2Image forming apparatus, image forming method and process cartridgeRICOH CO LTD·Filed 2007·Granted Dec 7, 2010·4 cites·17 claims
- 3874US6677091B2Electrophotographic photoreceptor and electrophotographic apparatusRICOH KK·Filed 2002·Granted Jan 13, 2004·13 cites·49 claims
- 3972US7560203B2Electrophotographic photoreceptor, method of image formation, image formation apparatus and process cartridge for image formation apparatusRICOH KK·Filed 2004·Granted Jul 14, 2009·12 cites·50 claims
- 4071US7534538B2Coating liquid for intermediate layer in electrophotographic photoconductor, electrophotographic photoconductor utilizing the same, image forming apparatus and process cartridge for image forming apparatusRICOH KK·Filed 2005·Granted May 19, 2009·3 cites·19 claims
- 4170US11904058B2Hydrogel object and method of manufacturing hydrogel objectRICOH CO LTD·Filed 2019·Granted Feb 20, 2024·0 cites·13 claims
- 4270US11639400B2Active energy ray curable liquid, method of manufacturing fabrication object, resin fabrication object, and gel fabrication objectRICOH CO LTD·Filed 2019·Granted May 2, 2023·0 cites·25 claims
- 4370US10202399B2Dihydroxy aromatic heterocyclic compoundTAKEDA PHARMACEUTICALS CO·Filed 2016·Granted Feb 12, 2019·1 cites·12 claims
- 4468US7894750B2Compact and high speed image forming apparatus and image forming method using the sameRICOH CO LTD·Filed 2007·Granted Feb 22, 2011·3 cites·19 claims
- 4566US11076839B2Ultrasonic inspection phantom and method of manufacturing sameNIIMI TATSUYA·Filed 2018·Granted Aug 3, 2021·0 cites·21 claims
- 4666US7060404B2Electrophotographic photoreceptor, method for manufacturing the electrophotographic photoreceptor and image forming apparatus using the electrophotographic photoreceptorRICOH KK·Filed 2002·Granted Jun 13, 2006·8 cites·6 claims
- 4766US7029810B2Electrophotographic image forming apparatusRICOH KK·Filed 2003·Granted Apr 18, 2006·8 cites·37 claims
- 4866US2021078243A1Method of manufacturing three-dimensional object, liquid set for manufacturing three-dimensional object, device for manufacturing three-dimensional object, and gel objectIWATA HIROSHI·Filed 2020·Application pending·0 cites
- 4965US6803162B2Electrophotographic image forming apparatus, photoreceptor therefor and method for manufacturing the photoreceptorRICOH KK·Filed 2002·Granted Oct 12, 2004·9 cites·83 claims
- 5065US2022033621A1Composition for hydrogel solid freeform fabrication, method of fabricating hydrogel solid freeform fabrication object, and setRICOH CO LTD·Filed 2021·Application pending·0 cites
Showing the top 50 of 93 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →