Inventor · disambiguated record
Shinji Katagiri
Also filed as: KATAGIRI SHINJI
68 granted patents·5 pending applications·102 citations·filing 2004–2025
98Inventor score
Top patents by PatentIndex Score
73 records- 0195US9158238B2Image forming apparatus using stretch member and contact member to maintain potential with current flowing from current supply member to intermediate transfer beltCANON KK·Filed 2013·Granted Oct 13, 2015·10 cites·35 claims
- 0294US11846899B2Image forming apparatusCANON KK·Filed 2021·Granted Dec 19, 2023·2 cites·29 claims
- 0394US9417568B2Image forming apparatus using stretch member and contact member to maintain potential with a current flowing to intermediate transfer beltCANON KK·Filed 2015·Granted Aug 16, 2016·6 cites·32 claims
- 0493US11435680B2Image forming apparatus which includes a belt having an electroconductive layerCANON KK·Filed 2021·Granted Sep 6, 2022·2 cites·26 claims
- 0593US9002227B2Image forming apparatusCANON KK·Filed 2013·Granted Apr 7, 2015·8 cites·13 claims
- 0692US9817342B2Image forming apparatus using stretch member and contact member to maintain potential with a current flowing to intermediate transer beltCANON KK·Filed 2016·Granted Nov 14, 2017·4 cites·16 claims
- 0791US2025362629A1Image forming apparatusCANON KK·Filed 2025·Application pending·0 cites
- 0890US8059318B2Color image forming apparatus and control method thereforMAEBASHI YOICHIRO·Filed 2005·Granted Nov 15, 2011·14 cites·6 claims
- 0989US10725402B2Image forming apparatusCANON KK·Filed 2019·Granted Jul 28, 2020·2 cites·22 claims
- 1089US10606190B2Image forming apparatus that collects toner remaining on intermediate transfer member using member in abutment with intermediate transfer memberCANON KK·Filed 2019·Granted Mar 31, 2020·3 cites·23 claims
- 1189US10168645B2Image forming apparatus where primary transfer is performed with electric current flowing in circumferential direction of intermediate transfer beltCANON KK·Filed 2017·Granted Jan 1, 2019·3 cites·21 claims
- 1289US9335726B2Image forming apparatus having a transfer unit frameCANON KK·Filed 2015·Granted May 10, 2016·3 cites·14 claims
- 1387US8965256B2Image forming apparatusCANON KK·Filed 2012·Granted Feb 24, 2015·4 cites·10 claims
- 1485US10999476B2Image forming apparatus configured to perform gradation correction processCANON KK·Filed 2020·Granted May 4, 2021·2 cites·26 claims
- 1585US9141038B2Image forming apparatusCANON KK·Filed 2013·Granted Sep 22, 2015·3 cites·25 claims
- 1685US8909111B2Image forming apparatusCANON KK·Filed 2013·Granted Dec 9, 2014·3 cites·16 claims
- 1784US10788769B2Image forming apparatusCANON KK·Filed 2018·Granted Sep 29, 2020·2 cites·10 claims
- 1884US10642195B2Image forming apparatus using intermediate transfer member having grooves and specified dynamic friction coefficientCANON KK·Filed 2019·Granted May 5, 2020·2 cites·12 claims
- 1984US10289025B2Image forming apparatus for electrophotographic processing utilizing varying surface speedsCANON KK·Filed 2018·Granted May 14, 2019·2 cites·16 claims
- 2084US10180643B2Image forming apparatus having intermediate transfer belt, secondary transfer member that contacts outer surface of intermediate transfer belt, opposed member opposed to secondary transfer member via intermediate transfer belt, contact member that contacts inner surface of intermediate transfer belt, and constant-voltage element through which opposed member and contact member are groundedCANON KK·Filed 2017·Granted Jan 15, 2019·1 cites·14 claims
- 2184US9046861B2Image-forming apparatusCANON KK·Filed 2014·Granted Jun 2, 2015·3 cites·14 claims
- 2284US8831444B2Color image forming apparatusSHIMURA MASARU·Filed 2012·Granted Sep 9, 2014·3 cites·19 claims
- 2383US11209767B2Image-forming apparatusCANON KK·Filed 2021·Granted Dec 28, 2021·1 cites·12 claims
- 2483US9063497B2Image forming apparatus having a power supply common to primary transfer and secondary transferCANON KK·Filed 2013·Granted Jun 23, 2015·3 cites·16 claims
- 2582US9454108B2Image forming apparatusCANON KK·Filed 2015·Granted Sep 27, 2016·2 cites·14 claims
- 2680US12416881B2Image forming apparatusCANON KK·Filed 2023·Granted Sep 16, 2025·0 cites·25 claims
- 2780US11143987B2Imaging forming apparatus with enhanced primary transferability where primary transfer is performed with electric current flowing in circumferential direction of intermediate transfer beltCANON KK·Filed 2018·Granted Oct 12, 2021·1 cites·20 claims
- 2876US8116668B2Toner supplying roller, developing apparatus, and image forming apparatusKOYANAGI MASATO·Filed 2009·Granted Feb 14, 2012·6 cites·7 claims
- 2975US12019382B2Image forming apparatusCANON KK·Filed 2023·Granted Jun 25, 2024·0 cites·8 claims
- 3074US11537066B2Image forming apparatusCANON KK·Filed 2021·Granted Dec 27, 2022·0 cites·5 claims
- 3174US2024248421A1Image forming apparatus and control method, that control charging voltage according to positions of developing rollerCANON KK·Filed 2024·Application pending·0 cites
- 3273US12265344B2Image forming apparatus to suppress scattering of tonerCANON KK·Filed 2023·Granted Apr 1, 2025·0 cites·7 claims
- 3372US12265355B2Image forming apparatus having grounded fixing memberCANON KK·Filed 2023·Granted Apr 1, 2025·0 cites·4 claims
- 3472US11747754B2Image forming apparatusCANON KK·Filed 2022·Granted Sep 5, 2023·0 cites·23 claims
- 3572US11656564B2Image forming apparatus which includes a belt having an electroconductive layerCANON KK·Filed 2022·Granted May 23, 2023·0 cites·10 claims
- 3671US11841676B2Image forming apparatus controlling voltage applied to transfer memberCANON KK·Filed 2022·Granted Dec 12, 2023·0 cites·22 claims
- 3770US11841649B2Image forming apparatus providing variable transfer voltage based on transfer modeCANON KK·Filed 2022·Granted Dec 12, 2023·0 cites·8 claims
- 3870US10627749B2Image forming apparatus having transfer power source that applies voltage to secondary transfer member to perform secondary transfer of toner images from electrically conductive intermediate transfer belt to recording materials, toner images on image carrier primarily transferred to belt by transfer power source and contact member in which an electric potential is formed by constant-voltage element, transfer power source and auxiliary power sourceCANON KK·Filed 2018·Granted Apr 21, 2020·0 cites·9 claims
- 3970US9494894B2Image forming apparatusCANON KK·Filed 2014·Granted Nov 15, 2016·1 cites·12 claims
- 4069US11262673B2Image forming apparatusCANON KK·Filed 2020·Granted Mar 1, 2022·0 cites·14 claims
- 4169US10948844B2Color image forming apparatusCANON KK·Filed 2019·Granted Mar 16, 2021·0 cites·16 claims
- 4269US8437670B2Image forming apparatusKATAGIRI SHINJI·Filed 2011·Granted May 7, 2013·2 cites·14 claims
- 4368US11971666B2Image forming apparatus and control method, that control charging voltage according to positions of developing rollerCANON KK·Filed 2022·Granted Apr 30, 2024·0 cites·19 claims
- 4468US9001174B2Image forming apparatusCANON KK·Filed 2013·Granted Apr 7, 2015·1 cites·19 claims
- 4567US9176436B2Image forming apparatus with a brush member configured to charge untransferred developer materialCANON KK·Filed 2012·Granted Nov 3, 2015·1 cites·13 claims
- 4664US10372058B2Color image forming apparatusCANON KK·Filed 2017·Granted Aug 6, 2019·0 cites·16 claims
- 4762US9250576B2Image forming apparatusCANON KK·Filed 2014·Granted Feb 2, 2016·0 cites·14 claims
- 4861US9052670B2Color image forming apparatusCANON KK·Filed 2014·Granted Jun 9, 2015·0 cites·12 claims
- 4957US11460795B2Image forming apparatusCANON KK·Filed 2021·Granted Oct 4, 2022·0 cites·8 claims
- 5056US9256187B2Image forming apparatus using two power supply units to control transfer currentCANON KK·Filed 2015·Granted Feb 9, 2016·0 cites·13 claims
Showing the top 50 of 73 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →