Inventor · disambiguated record
Keiji Maruo
Also filed as: MARUO KEIJI
19 granted patents·7 pending applications·19 citations·filing 2005–2024
89Inventor score
Files withKYOCERA DOCUMENT SOLUTIONS INC17KUBOSHIMA DAISUKE4OTSUBO JUNICHIRO2HAMASAKI KAZUNARI1KYOCERA MITA CORP1
Top patents by PatentIndex Score
26 records- 0192US10295918B2Electrophotographic photosensitive member, process cartridge, and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2017·Granted May 21, 2019·6 cites·10 claims
- 0291US10191397B2Electrophotographic photosensitive member, process cartridge, and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2017·Granted Jan 29, 2019·5 cites·9 claims
- 0383US10241428B2Electrophotographic photosensitive member, process cartridge, and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2017·Granted Mar 26, 2019·2 cites·10 claims
- 0471US7700251B2Electrophotographic photoconductor and image-forming apparatusKYOCERA MITA CORP·Filed 2006·Granted Apr 20, 2010·4 cites·6 claims
- 0568US12360468B2Polyarylate resin and electrophotographic photosensitive memberKYOCERA DOCUMENT SOLUTIONS INC·Filed 2022·Granted Jul 15, 2025·0 cites·5 claims
- 0668US8242261B2Oxo-titanylphthalocyanine crystal, method for producing the same, and electrophotographic photoreceptorKUBOSHIMA DAISUKE·Filed 2010·Granted Aug 14, 2012·1 cites·6 claims
- 0766US12468255B2Electrophotographic photosensitive member, process cartridge, and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2024·Granted Nov 11, 2025·0 cites·13 claims
- 0866US12339618B2Polyarylate resin and electrophotographic photosensitive memberKYOCERA DOCUMENT SOLUTIONS INC·Filed 2022·Granted Jun 24, 2025·0 cites·12 claims
- 0959US9023564B2Azoquinone compound, electrophotographic photoconductor, and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2014·Granted May 5, 2015·0 cites·4 claims
- 1058US9256144B2Electrophotographic photosensitive member and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2014·Granted Feb 9, 2016·0 cites·8 claims
- 1156US8686133B2Oxo-titanylphthalocyanine crystal, method for producing the same and electrophotographic photoreceptorKUBOSHIMA DAISUKE·Filed 2012·Granted Apr 1, 2014·0 cites·8 claims
- 1254US8679710B2Electrophotographic photoreceptor and image forming apparatusKUBOSHIMA DAISUKE·Filed 2005·Granted Mar 25, 2014·1 cites·1 claims
- 1354US2008026310A1Oxo-titanylphthalocyanine crystal, method for producing the same, and electrophotographic photoreceptorKUBOSHIMA DAISUKE·Filed 2007·Application pending·0 cites
- 1452US2024353772A1Electrophotographic photosensitive member, process cartridge, and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2024·Application pending·0 cites
- 1552US2024353771A1Electrophotographic photosensitive member, process cartridge, and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2024·Application pending·0 cites
- 1646US10732526B2Electrophotographic photosensitive member, process cartridge, and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2017·Granted Aug 4, 2020·0 cites·15 claims
- 1746US9436104B2Electrophotographic photosensitive member and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2014·Granted Sep 6, 2016·0 cites·6 claims
- 1843US9829811B2Electrophotographic photosensitive member, process cartridge, and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2016·Granted Nov 28, 2017·0 cites·9 claims
- 1943US2024117109A1Polyarylate resin and electrophotographic photosensitive memberKYOCERA DOCUMENT SOLUTIONS INC·Filed 2022·Application pending·0 cites
- 2043US2024103389A1Polyarylate resin and electrophotographic photosensitive memberKYOCERA DOCUMENT SOLUTIONS INC·Filed 2022·Application pending·0 cites
- 2140US10649351B2Electrophotographic photosensitive member, process cartridge, and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2017·Granted May 12, 2020·0 cites·15 claims
- 2239US2008050666A1Electrophotographic photoconductor and image forming apparatusOTSUBO JUNICHIRO·Filed 2007·Application pending·0 cites
- 2337US9448496B2Electrophotographic photosensitive memberKYOCERA DOCUMENT SOLUTIONS INC·Filed 2015·Granted Sep 20, 2016·0 cites·4 claims
- 2435US2007077507A1Electrophotographic photoconductor and manufacturing method of electrophotographic photoconductorOTSUBO JUNICHIRO·Filed 2006·Application pending·0 cites
- 2531US9141007B2Monolayer type photoconductor and image forming deviceHAMASAKI KAZUNARI·Filed 2008·Granted Sep 22, 2015·0 cites·8 claims
- 2631US8765337B2Multilayer type electrophotographic photoconductor and image forming apparatusMARUO KEIJI·Filed 2007·Granted Jul 1, 2014·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →