Inventor · disambiguated record
Jun Azuma
Also filed as: AZUMA JUN · AZUMA JUN-ICHI
63 granted patents·18 pending applications·787 citations·filing 1982–2024
98Inventor score
Files withKYOCERA DOCUMENT SOLUTIONS INC42CANON KK14KYOCERA MITA CORP14KUBOSHIMA DAISUKE3OTSUBO JUNICHIRO3
Top patents by PatentIndex Score
81 records- 0198US6084622AFrame structure and an image forming apparatus using such a frame structureCANON KK·Filed 1997·Granted Jul 4, 2000·171 cites·40 claims
- 0297US4833502AImage forming apparatus having an image bearing member reciprocally movable in the direction of the rotational axis thereofCANON KK·Filed 1988·Granted May 23, 1989·66 cites·8 claims
- 0396US6035159AProcess cartridge with axially shiftable drive couplingCANON KK·Filed 1997·Granted Mar 7, 2000·107 cites·29 claims
- 0494US5634178AGear unit, image forming apparatus and gear unit mounting methodCANON KK·Filed 1996·Granted May 27, 1997·79 cites·56 claims
- 0594US5561496AImage forming apparatus, assembling method of image forming apparatus, and mounting method of outer casingCANON KK·Filed 1994·Granted Oct 1, 1996·52 cites·44 claims
- 0694US5559581AImage forming apparatus with helical gear drive trainCANON KK·Filed 1994·Granted Sep 24, 1996·56 cites·28 claims
- 0793US10359713B2Electrophotographic photosensitive member, process cartridge, and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2018·Granted Jul 23, 2019·7 cites·17 claims
- 0892US10295918B2Electrophotographic photosensitive member, process cartridge, and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2017·Granted May 21, 2019·6 cites·10 claims
- 0991US10191397B2Electrophotographic photosensitive member, process cartridge, and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2017·Granted Jan 29, 2019·5 cites·9 claims
- 1083US5907745AImage forming apparatus having arrangement of sheet support members and air ductsCANON KK·Filed 1997·Granted May 25, 1999·36 cites·48 claims
- 1180US5621451AImage forming apparatusCANON KK·Filed 1993·Granted Apr 15, 1997·27 cites·122 claims
- 1278US6593047B2Single-layer type electrophotosensitive materialKYOCERA MITA CORP·Filed 2001·Granted Jul 15, 2003·18 cites·15 claims
- 1377US5351264AOptical apparatus for emitting light and automatic adjustment apparatus thereforCANON KK·Filed 1993·Granted Sep 27, 1994·25 cites·5 claims
- 1475US5708922AGuide means and electrophotographic image forming apparatusCANON KK·Filed 1996·Granted Jan 13, 1998·27 cites·25 claims
- 1574US9133227B2Production methods for solubilized lignin, saccharide raw material and monosaccharide raw material, and solubilized ligninAZUMA JUN-ICHI·Filed 2008·Granted Sep 15, 2015·3 cites·4 claims
- 1672US7855286B2Titanyl phthalocyanin crystal, method for preparing the same and electrophotographic photoconductorKYOCERA MITA CORP·Filed 2009·Granted Dec 21, 2010·3 cites·8 claims
- 1770US4907017ALaser optical apparatusCANON KK·Filed 1988·Granted Mar 6, 1990·16 cites·16 claims
- 1869US10730819B2Naphthalenedicarboxylic acid dichloride production methodKYOCERA DOCUMENT SOLUTIONS INC·Filed 2019·Granted Aug 4, 2020·0 cites·5 claims
- 1968US12360468B2Polyarylate resin and electrophotographic photosensitive memberKYOCERA DOCUMENT SOLUTIONS INC·Filed 2022·Granted Jul 15, 2025·0 cites·5 claims
- 2068US8660459B2Drum unit having side seals and image-forming apparatus including the sameAZUMA JUN·Filed 2009·Granted Feb 25, 2014·4 cites·12 claims
- 2168US8242261B2Oxo-titanylphthalocyanine crystal, method for producing the same, and electrophotographic photoreceptorKUBOSHIMA DAISUKE·Filed 2010·Granted Aug 14, 2012·1 cites·6 claims
- 2266US12468255B2Electrophotographic photosensitive member, process cartridge, and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2024·Granted Nov 11, 2025·0 cites·13 claims
- 2366US12339618B2Polyarylate resin and electrophotographic photosensitive memberKYOCERA DOCUMENT SOLUTIONS INC·Filed 2022·Granted Jun 24, 2025·0 cites·12 claims
- 2466US7057034B2Titanyl phthalocyanine crystal and production method of the same, and electrophotosensitive materialKYOCERA MITA CORP·Filed 2003·Granted Jun 6, 2006·5 cites·13 claims
- 2561US10795273B2Bis-butadiene derivative and electrophotographic photosensitive memberKYOCERA DOCUMENT SOLUTIONS INC·Filed 2019·Granted Oct 6, 2020·0 cites·8 claims
- 2661US10372048B2Electrophotographic photosensitive memberKYOCERA DOCUMENT SOLUTIONS INC·Filed 2018·Granted Aug 6, 2019·0 cites·13 claims
- 2761US4977412AOptical scanning deviceCANON KK·Filed 1988·Granted Dec 11, 1990·16 cites·13 claims
- 2860US2024334816A1Hole transport material, and photoelectric conversion element and organic solar cell using hole transport materialKYOCERA DOCUMENT SOLUTIONS INC·Filed 2024·Application pending·0 cites
- 2956US10509309B2Polyarylate resin and electrophotographic photosensitive memberKYOCERA DOCUMENT SOLUTIONS INC·Filed 2018·Granted Dec 17, 2019·0 cites·11 claims
- 3056US10273331B2Polyarylate resin and electrophotographic photosensitive memberKYOCERA DOCUMENT SOLUTIONS INC·Filed 2017·Granted Apr 30, 2019·0 cites·2 claims
- 3156US8686133B2Oxo-titanylphthalocyanine crystal, method for producing the same and electrophotographic photoreceptorKUBOSHIMA DAISUKE·Filed 2012·Granted Apr 1, 2014·0 cites·8 claims
- 3256US6573017B2Single-layer type electrophotosensitive materialKYOCERA MITA CORP·Filed 2001·Granted Jun 3, 2003·6 cites·8 claims
- 3355US7029811B2Electrophotographic photoreceptorKYOCERA MITA CORP·Filed 2002·Granted Apr 18, 2006·5 cites·16 claims
- 3454US9964869B2Triarylamine derivative, electrophotographic photosensitive member, and method for producing electrophotographic photosensitive memberKYOCERA DOCUMENT SOLUTIONS INC·Filed 2016·Granted May 8, 2018·0 cites·11 claims
- 3554US7399564B2Electrophotographic photoconductorKYOCERA MITA CORP·Filed 2006·Granted Jul 15, 2008·1 cites·9 claims
- 3654US2008026310A1Oxo-titanylphthalocyanine crystal, method for producing the same, and electrophotographic photoreceptorKUBOSHIMA DAISUKE·Filed 2007·Application pending·0 cites
- 3753US6858368B2Electrophotographic photoreceptor and image forming deviceKYOCERA MITA CORP·Filed 2003·Granted Feb 22, 2005·5 cites·11 claims
- 3852US5900961AScanning optical deviceCANON KK·Filed 1995·Granted May 4, 1999·12 cites·34 claims
- 3952US2024353772A1Electrophotographic photosensitive member, process cartridge, and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2024·Application pending·0 cites
- 4052US2024353771A1Electrophotographic photosensitive member, process cartridge, and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2024·Application pending·0 cites
- 4149US9429859B2Electrophotographic photosensitive memberKYOCERA DOCUMENT SOLUTIONS INC·Filed 2014·Granted Aug 30, 2016·0 cites·8 claims
- 4248US11067909B2Terphenyl compound, electrophotographic photosensitive member, and method for producing terphenyl compoundKYOCERA DOCUMENT SOLUTIONS INC·Filed 2018·Granted Jul 20, 2021·0 cites·9 claims
- 4348US10761441B2Production method for electrophotographic photosensitive memberKYOCERA DOCUMENT SOLUTIONS INC·Filed 2019·Granted Sep 1, 2020·0 cites·11 claims
- 4448US9939744B2Multi-layer electrophotographic photosensitive memberKYOCERA DOCUMENT SOLUTIONS INC·Filed 2016·Granted Apr 10, 2018·0 cites·5 claims
- 4548US6879794B2Image forming apparatusKYOCERA MITA CORP·Filed 2002·Granted Apr 12, 2005·4 cites·11 claims
- 4647US10996575B2Electrophotographic photosensitive member, process cartridge, and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2020·Granted May 4, 2021·0 cites·13 claims
- 4746US10732526B2Electrophotographic photosensitive member, process cartridge, and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2017·Granted Aug 4, 2020·0 cites·15 claims
- 4846US9575423B2Electrophotographic photosensitive memberKYOCERA DOCUMENT SOLUTIONS INC·Filed 2015·Granted Feb 21, 2017·0 cites·16 claims
- 4946US9436104B2Electrophotographic photosensitive member and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2014·Granted Sep 6, 2016·0 cites·6 claims
- 5046US6461779B1Single-layer type electrophotosensitive materialKYOCERA MITA CORP·Filed 2001·Granted Oct 8, 2002·3 cites·10 claims
Showing the top 50 of 81 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →