Inventor · disambiguated record
Tomoya Ichikawa
Also filed as: ICHIKAWA TOMOYA
61 granted patents·3 pending applications·139 citations·filing 2006–2024
98Inventor score
Top patents by PatentIndex Score
64 records- 0198US11415933B2Developing cartridge providing layout of electrodes and detection gearBROTHER IND LTD·Filed 2020·Granted Aug 16, 2022·4 cites·5 claims
- 0297US11803154B2Developing cartridge providing layout of electrodes and detection gearBROTHER IND LTD·Filed 2023·Granted Oct 31, 2023·2 cites·18 claims
- 0396US10379492B2Developing cartridge providing layout of electrodes and detection gearBROTHER IND LTD·Filed 2019·Granted Aug 13, 2019·5 cites·17 claims
- 0496US10241467B2Developing cartridge providing layout of electrodes and detection gearBROTHER IND LTD·Filed 2018·Granted Mar 26, 2019·7 cites·19 claims
- 0593US10663917B2Image forming apparatusBROTHER IND LTD·Filed 2019·Granted May 26, 2020·4 cites·15 claims
- 0693US9273772B2Pulley apparatusICHIKAWA TOMOYA·Filed 2012·Granted Mar 1, 2016·19 cites·3 claims
- 0792US11493873B2Layer transfer deviceBROTHER IND LTD·Filed 2021·Granted Nov 8, 2022·2 cites·59 claims
- 0892US10663916B2Image forming apparatusBROTHER IND LTD·Filed 2019·Granted May 26, 2020·3 cites·17 claims
- 0990US9964922B2Developing cartridge providing layout of electrodes and detection gearBROTHER IND LTD·Filed 2017·Granted May 8, 2018·2 cites·21 claims
- 1090US2025123591A1Developing cartridge providing layout of electrodes and detection gearBROTHER IND LTD·Filed 2024·Application pending·0 cites
- 1189US8135293B2Image forming apparatus and apparatusYAMAGUCHI YOJI·Filed 2009·Granted Mar 13, 2012·13 cites·11 claims
- 1287US2025102997A1Developing cartridge including supply roller, layer thickness regulation blade, and supply electrode electrically connected to both supply roller and layer thickness regulation bladeBROTHER IND LTD·Filed 2024·Application pending·0 cites
- 1386US12204275B2Developing cartridge providing layout of electrodes and detection gearBROTHER IND LTD·Filed 2023·Granted Jan 21, 2025·0 cites·12 claims
- 1486US12045002B2Film cartridge, film unit, and layer transfer deviceBROTHER IND LTD·Filed 2021·Granted Jul 23, 2024·1 cites·44 claims
- 1586US10649366B2Developing cartridge including supply roller, layer thickness regulation blade, and supply electrode electrically connected to both supply roller and layer thickness regulation bladeBROTHER IND LTD·Filed 2019·Granted May 12, 2020·1 cites·15 claims
- 1686US7965972B2Image forming apparatus, powder transporting apparatus and waste-powder transporting methodFUJI XEROX CO LTD·Filed 2009·Granted Jun 21, 2011·9 cites·11 claims
- 1783US12204274B2Developing cartridge including supply roller, layer thickness regulation blade, and supply electrode electrically connected to both supply roller and layer thickness regulation bladeBROTHER IND LTD·Filed 2023·Granted Jan 21, 2025·0 cites·24 claims
- 1882US12449756B2Film cartridge, film unit, and layer transfer deviceBROTHER IND LTD·Filed 2024·Granted Oct 21, 2025·0 cites·12 claims
- 1982US11604433B2Developing cartridge providing layout of electrodes and detection gearBROTHER IND LTD·Filed 2022·Granted Mar 14, 2023·0 cites·7 claims
- 2082US7835667B2Discharger, image carrier unit, and image forming apparatusFUJI XEROX CO LTD·Filed 2008·Granted Nov 16, 2010·7 cites·8 claims
- 2178US10747173B2Developing cartridge providing layout of electrodes and detection gearBROTHER IND LTD·Filed 2019·Granted Aug 18, 2020·0 cites·5 claims
- 2278US8718531B2Cleaning apparatus having damping unit to regulate vibrationICHIKAWA YUZO·Filed 2011·Granted May 6, 2014·3 cites·9 claims
- 2378US8280296B2Powder transporting device and image forming apparatusICHIKAWA TOMOYA·Filed 2008·Granted Oct 2, 2012·5 cites·18 claims
- 2475US11733643B2Developing cartridge including supply roller, layer thickness regulation blade, and supply electrode electrically connected to both supply roller and layer thickness regulation bladeBROTHER IND LTD·Filed 2021·Granted Aug 22, 2023·0 cites·20 claims
- 2575US11567449B2Image forming apparatusBROTHER IND LTD·Filed 2022·Granted Jan 31, 2023·0 cites·12 claims
- 2675US8195079B2Collection device and image forming apparatusTANAKA MIHOKO·Filed 2009·Granted Jun 5, 2012·5 cites·8 claims
- 2774US8588640B2Electrical connection structure, electrical connection method, electrical connection member, and image forming apparatusKUBO RYOUTA·Filed 2011·Granted Nov 19, 2013·3 cites·11 claims
- 2873US8116644B2Image forming apparatus and waste powder transporting methodICHIKAWA TOMOYA·Filed 2009·Granted Feb 14, 2012·4 cites·15 claims
- 2972US8116645B2Image forming apparatus with multiple waste powder storing containersYAMAGUCHI YOJI·Filed 2009·Granted Feb 14, 2012·4 cites·8 claims
- 3072US7813690B2Cleaning deviceFUJI XEROX CO LTD·Filed 2007·Granted Oct 12, 2010·4 cites·11 claims
- 3171US11073785B2Developing cartridge including supply roller, layer thickness regulation blade, and supply electrode electrically connected to both supply roller and layer thickness regulation bladeBROTHER IND LTD·Filed 2020·Granted Jul 27, 2021·0 cites·16 claims
- 3271USD849131SToner cartridgeBROTHER IND LTD·Filed 2017·Granted May 21, 2019·12 cites·1 claims
- 3371US8131165B2Image forming apparatus and waste powder transporting methodYAMAGUCHI YOJI·Filed 2009·Granted Mar 6, 2012·4 cites·10 claims
- 3470US7616913B2Charging roller cleaning device with guiding portion and image forming device having sameFUJI XEROX CO LTD·Filed 2006·Granted Nov 10, 2009·4 cites·14 claims
- 3568US11262691B2Image forming apparatusBROTHER IND LTD·Filed 2020·Granted Mar 1, 2022·0 cites·10 claims
- 3668US10788784B2Image forming apparatus including developing cartridge, toner container, and supply tubeBROTHER IND LTD·Filed 2019·Granted Sep 29, 2020·0 cites·13 claims
- 3767US8634755B2Cleaning unit, image carrier unit, and image forming apparatusICHIKAWA TOMOYA·Filed 2011·Granted Jan 21, 2014·1 cites·7 claims
- 3866US11131957B2Image forming apparatus including developing cartridge, toner container, and supply tubeBROTHER IND LTD·Filed 2020·Granted Sep 28, 2021·0 cites·12 claims
- 3965US12103296B2Layer transfer film cartridge and layer transfer deviceBROTHER IND LTD·Filed 2020·Granted Oct 1, 2024·0 cites·40 claims
- 4065US11061362B2Image forming apparatusBROTHER IND LTD·Filed 2020·Granted Jul 13, 2021·0 cites·9 claims
- 4164US8682221B2Discharger and image forming apparatusICHIKAWA YUZO·Filed 2011·Granted Mar 25, 2014·1 cites·20 claims
- 4264US7711284B2Cleaning device for a charging roller of an electrophotographic systemFUJI XEROX CO LTD·Filed 2007·Granted May 4, 2010·2 cites·22 claims
- 4363US11874624B2Cartridge for foil transfer device and holderBROTHER IND LTD·Filed 2022·Granted Jan 16, 2024·0 cites·20 claims
- 4463US8577247B2Discharger and image forming apparatus having an electrode cleaning detection memberKIMURA AKIKO·Filed 2011·Granted Nov 5, 2013·1 cites·8 claims
- 4563US8509671B2Cleaner and image forming apparatusKIMURA AKIKO·Filed 2011·Granted Aug 13, 2013·1 cites·6 claims
- 4658US2025018707A1Foil transferring apparatus, transferring apparatus, foil transferring method, and transferring methodBROTHER IND LTD·Filed 2024·Application pending·0 cites
- 4757US11971673B2Image forming apparatusBROTHER IND LTD·Filed 2022·Granted Apr 30, 2024·0 cites·31 claims
- 4856US8036586B2Developer delivering device and image forming apparatusFUJI XEROX CO LTD·Filed 2009·Granted Oct 11, 2011·1 cites·13 claims
- 4955US9829086B2Pulley apparatusNSK LTD·Filed 2016·Granted Nov 28, 2017·0 cites·5 claims
- 5054US10108130B2Developer cartridge having developer electrodeBROTHER IND LTD·Filed 2017·Granted Oct 23, 2018·0 cites·19 claims
Showing the top 50 of 64 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →