Inventor · disambiguated record
Yasuhiro Ichikawa
Also filed as: ICHIKAWA YASUHIRO
35 granted patents·7 pending applications·504 citations·filing 1992–2023
97Inventor score
Top patents by PatentIndex Score
42 records- 0198US7300733B2Black toner with defined loss tangentCANON KK·Filed 2005·Granted Nov 27, 2007·38 cites·7 claims
- 0297US7816063B2Color toner and two-component developerCANON KK·Filed 2009·Granted Oct 19, 2010·31 cites·1 claims
- 0397US7455947B2Yellow toner, image forming apparatus and a method for producing a tonerCANON KK·Filed 2007·Granted Nov 25, 2008·26 cites·3 claims
- 0496US7147980B2Toner and image forming apparatusCANON KK·Filed 2004·Granted Dec 12, 2006·69 cites·10 claims
- 0595US7288348B2Color tonerCANON KK·Filed 2004·Granted Oct 30, 2007·60 cites·13 claims
- 0692US6664016B2Magenta tonerCANON KK·Filed 2001·Granted Dec 16, 2003·43 cites·61 claims
- 0790US5512402ACarrier for electrophotography, two-component type developer, and image forming methodCANON KK·Filed 1994·Granted Apr 30, 1996·36 cites·26 claims
- 0888US7112395B2Color tonerCANON KK·Filed 2004·Granted Sep 26, 2006·30 cites·13 claims
- 0986US10661761B2Foreign matter removal device and vehicle equipped with foreign matter removal deviceKOITO MFG CO LTD·Filed 2016·Granted May 26, 2020·2 cites·27 claims
- 1084US12269439B2Vehicle cleaning device, manufacturing method thereof, and assembly method thereofKOITO MFG CO LTD·Filed 2023·Granted Apr 8, 2025·0 cites·3 claims
- 1182US7544457B2Color toner and two-component developerCANON KK·Filed 2004·Granted Jun 9, 2009·17 cites·5 claims
- 1279US7022449B2Black toner with defined loss tangentCANON KK·Filed 2003·Granted Apr 4, 2006·15 cites·2 claims
- 1379US5670288ACarrier for electrophotography, two-component type developer, and image forming methodCANON KK·Filed 1996·Granted Sep 23, 1997·25 cites·75 claims
- 1478US11505163B2Foreign matter removal device and vehicle equipped with foreign matter removal deviceKOITO MFG CO LTD·Filed 2020·Granted Nov 22, 2022·1 cites·2 claims
- 1578US10604122B2Foreign matter removal device and vehicle provided with sameKOITO MFG CO LTD·Filed 2016·Granted Mar 31, 2020·1 cites·21 claims
- 1676US11794702B2Cleaner, sensor with cleaner, and vehicle including cleaner or sensor with cleanerKOITO MFG CO LTD·Filed 2017·Granted Oct 24, 2023·1 cites·9 claims
- 1775US11827188B2Foreign material removing device and vehicle provided with this foreign material removing deviceKOITO MFG CO LTD·Filed 2021·Granted Nov 28, 2023·0 cites·7 claims
- 1875US11827186B2Vehicle cleaning device, manufacturing method thereof, and assembly method thereofKOITO MFG CO LTD·Filed 2021·Granted Nov 28, 2023·0 cites·6 claims
- 1975US6146801AResin-coated carrier, two component type developer, and developing methodCANON KK·Filed 1999·Granted Nov 14, 2000·23 cites·74 claims
- 2074US12036957B2Vehicular cleaner system, vehicle having vehicular cleaner system, vehicular cleaner and vehicle having vehicular cleanerKOITO MFG CO LTD·Filed 2023·Granted Jul 16, 2024·0 cites·5 claims
- 2174US11535203B2Air cleaner for vehiclesKOITO MFG CO LTD·Filed 2018·Granted Dec 27, 2022·1 cites·4 claims
- 2274US5733702AImage forming method employing toner with external additiveCANON KK·Filed 1995·Granted Mar 31, 1998·21 cites·145 claims
- 2372US11225224B2Foreign material removal deviceKOITO MFG CO LTD·Filed 2019·Granted Jan 18, 2022·0 cites·4 claims
- 2470US11155244B2Foreign material removing device and vehicle provided with this foreign material removing deviceKOITO MFG CO LTD·Filed 2016·Granted Oct 26, 2021·1 cites·16 claims
- 2570US6187490B1Resin-coated carrier, two-component developer and image forming methodCANON KK·Filed 2000·Granted Feb 13, 2001·11 cites·61 claims
- 2668US12060041B2Foreign body removal device and drive device for foreign body removal deviceKOITO MFG CO LTD·Filed 2021·Granted Aug 13, 2024·0 cites·4 claims
- 2768US5637432AToner for developing electrostatic image comprising titanium oxide particlesCANON KK·Filed 1995·Granted Jun 10, 1997·16 cites·45 claims
- 2866US5322862AResin molding composition for preventing gnawing damage by animalsNIPPON KAYAKU KK·Filed 1992·Granted Jun 21, 1994·14 cites·9 claims
- 2965US11845092B2Vehicle washing deviceKOITO MFG CO LTD·Filed 2021·Granted Dec 19, 2023·0 cites·4 claims
- 3065US5456916AMicrocapsules containing capsaicine compound and their productionNIPPON KAYAKU KK·Filed 1994·Granted Oct 10, 1995·22 cites·4 claims
- 3164US11731590B2Vehicular cleaner system, vehicle having vehicular cleaner system, vehicular cleaner and vehicle having vehicular cleanerKOITO MFG CO LTD·Filed 2017·Granted Aug 22, 2023·0 cites·7 claims
- 3259US10436186B2Foreign material removal deviceKOITO MFG CO LTD·Filed 2015·Granted Oct 8, 2019·0 cites·11 claims
- 3357US12012078B2Vehicle cleanerKOITO MFG CO LTD·Filed 2020·Granted Jun 18, 2024·0 cites·6 claims
- 3452US2020198591A1Foreign matter removal device and vehicle provided with sameKOITO MFG CO LTD·Filed 2020·Application pending·0 cites
- 3551US2023095379A1Check valve, check valve-equipped branching tool, and cleaner deviceKOITO MFG CO LTD·Filed 2022·Application pending·0 cites
- 3649US11230271B2Foreign body removal device and drive device for foreign body removal deviceKOITO MFG CO LTD·Filed 2015·Granted Jan 25, 2022·0 cites·2 claims
- 3749US2021179030A1Vehicular cleaner system and vehicle having vehicular cleaner systemKOITO MFG CO LTD·Filed 2018·Application pending·0 cites
- 3848US10556571B2Foreign matter removal device and vehicle equipped with foreign matter removal deviceKOITO MFG CO LTD·Filed 2016·Granted Feb 11, 2020·0 cites·26 claims
- 3947US2006113404A1Cleaning device for vehicle lampSATO MASAAKI·Filed 2005·Application pending·0 cites
- 4043US2019283714A1Vehicle cleanerKOITO MFG CO LTD·Filed 2019·Application pending·0 cites
- 4139US2005106488A1Yellow toner, image forming apparatus and a method for producing a tonerCANON KK·Filed 2004·Application pending·0 cites
- 4238US2022227333A1Vehicular air curtain device, vehicular cleaner system, and vehicular air curtain systemKOITO MFG CO LTD·Filed 2020·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →