Inventor · disambiguated record
Fumio Tazawa
Also filed as: TAZAWA FUMIO
86 granted patents·10 pending applications·2,392 citations·filing 1998–2024
99Inventor score
Top patents by PatentIndex Score
96 records- 0199US10289060B2Developer supply container and developer supplying systemCANON KK·Filed 2017·Granted May 14, 2019·14 cites·21 claims
- 0299US10209667B2Developer supply container and developer supplying systemCANON KK·Filed 2017·Granted Feb 19, 2019·35 cites·23 claims
- 0399US9046820B1Sealing member, toner accommodating container and image forming apparatusCANON KK·Filed 2014·Granted Jun 2, 2015·22 cites·24 claims
- 0499US7647012B2Sealing member, toner accommodating container and image forming apparatusCANON KK·Filed 2008·Granted Jan 12, 2010·33 cites·40 claims
- 0599US7203449B2Toner supplying container and image forming apparatusCANON KK·Filed 2005·Granted Apr 10, 2007·41 cites·6 claims
- 0699US7127193B2Sealing member, toner accommodating container and image forming apparatusCANON KK·Filed 2005·Granted Oct 24, 2006·47 cites·15 claims
- 0799US6879789B2Sealing member, toner accommodating container and image forming apparatusCANON KK·Filed 2002·Granted Apr 12, 2005·96 cites·17 claims
- 0899US6766133B1Toner supplying container with shutter and related rotatable member feature and image forming apparatus using sameCANON KK·Filed 2000·Granted Jul 20, 2004·106 cites·42 claims
- 0999US6438345B1Toner supplying container and image forming apparatusCANON KK·Filed 2000·Granted Aug 20, 2002·149 cites·26 claims
- 1099US6292644B1Toner replenishing container and toner replenishing apparatusCANON KK·Filed 1999·Granted Sep 18, 2001·235 cites·28 claims
- 1198US11188009B2Developer supply container and developer supplying systemCANON KK·Filed 2020·Granted Nov 30, 2021·5 cites·27 claims
- 1298US10295957B2Developer supply container and developer supplying systemCANON KK·Filed 2017·Granted May 21, 2019·10 cites·25 claims
- 1398US10203631B2Developer supply container and developer supplying systemCANON KK·Filed 2017·Granted Feb 12, 2019·12 cites·33 claims
- 1498US9753402B2Developer supply container and developer supplying systemCANON KK·Filed 2015·Granted Sep 5, 2017·13 cites·46 claims
- 1598US9354551B2Developer supply container and developer supplying systemCANON KK·Filed 2014·Granted May 31, 2016·17 cites·20 claims
- 1698US9354549B1Developer supply container, developer supplying apparatus and image forming apparatusCANON KK·Filed 2015·Granted May 31, 2016·32 cites·8 claims
- 1798US9354550B2Developer supply container and developer supplying systemCANON KK·Filed 2013·Granted May 31, 2016·16 cites·58 claims
- 1898US9229368B2Developer supply container and developer supplying system having pump operated developer dischargeOKINO AYATOMO·Filed 2011·Granted Jan 5, 2016·35 cites·38 claims
- 1998US8565649B2Developer supply container and developer supplying systemMURAKAMI KATSUYA·Filed 2011·Granted Oct 22, 2013·53 cites·58 claims
- 2098US7970321B2Sealing member, toner accommodating container and image forming apparatusCANON KK·Filed 2010·Granted Jun 28, 2011·17 cites·12 claims
- 2198US7881645B2Sealing member, toner accommodating container and image forming apparatusCANON KK·Filed 2010·Granted Feb 1, 2011·19 cites·10 claims
- 2298US7738817B2Developer supply container and image forming apparatusCANON KK·Filed 2005·Granted Jun 15, 2010·60 cites·12 claims
- 2398US7433633B2Toner supply container having a coupling member for engaging and receiving a rotational force from a cylindrical memberCANON KK·Filed 2006·Granted Oct 7, 2008·25 cites·3 claims
- 2498US7430384B2Sealing member, toner accommodating container and image forming apparatusCANON KK·Filed 2005·Granted Sep 30, 2008·23 cites·116 claims
- 2598US7386251B2Toner supply container including a coupling member for engaging and receiving a driving force from a cylindrical memberCANON KK·Filed 2006·Granted Jun 10, 2008·30 cites·8 claims
- 2698US7382997B2Sealing member, toner accommodating container and image forming apparatusCANON KK·Filed 2005·Granted Jun 3, 2008·29 cites·58 claims
- 2798US7376369B2Sealing member, toner accommodating container and image forming apparatusCANON KK·Filed 2006·Granted May 20, 2008·27 cites·2 claims
- 2898US7369798B2Developer supply container and image forming apparatusCANON KK·Filed 2005·Granted May 6, 2008·50 cites·7 claims
- 2998US7324777B2Sealing member, toner accommodating container and image forming apparatusCANON KK·Filed 2006·Granted Jan 29, 2008·30 cites·4 claims
- 3098US6990301B2Sealing member, toner accommodating container and image forming apparatusCANON KK·Filed 2003·Granted Jan 24, 2006·58 cites·11 claims
- 3198US6944417B2Toner supply container and image forming apparatusCANON KK·Filed 2004·Granted Sep 13, 2005·75 cites·5 claims
- 3297US11656560B2Developer supply container and developer supplying systemCANON KK·Filed 2021·Granted May 23, 2023·2 cites·23 claims
- 3397US11487221B2Developer supply container and developer supplying systemCANON KK·Filed 2021·Granted Nov 1, 2022·3 cites·20 claims
- 3497US10754276B2Developer supply container and developer supplying systemCANON KK·Filed 2019·Granted Aug 25, 2020·7 cites·6 claims
- 3597US10520881B2Developer supply container and developer supplying systemCANON KK·Filed 2019·Granted Dec 31, 2019·7 cites·27 claims
- 3697US10514654B2Developer supply container and developer supplying systemCANON KK·Filed 2017·Granted Dec 24, 2019·7 cites·60 claims
- 3797US10496032B2Developer supply container and developer supplying systemCANON KK·Filed 2019·Granted Dec 3, 2019·7 cites·61 claims
- 3897US10488814B2Developer supply container and developer supplying systemCANON KK·Filed 2019·Granted Nov 26, 2019·7 cites·25 claims
- 3997US10289061B2Developer supply container and developer supplying systemCANON KK·Filed 2017·Granted May 14, 2019·7 cites·23 claims
- 4097US9229364B2Developer supply container and developer supplying systemCANON KK·Filed 2013·Granted Jan 5, 2016·20 cites·58 claims
- 4197US7577385B2Toner supplying container and image forming apparatusCANON KK·Filed 2008·Granted Aug 18, 2009·19 cites·6 claims
- 4297US6934494B2Driving force receiving member and driving mechanismCANON KK·Filed 2001·Granted Aug 23, 2005·48 cites·39 claims
- 4397US6314261B1Toner container and toner replenishing mechanismCANON KK·Filed 2000·Granted Nov 6, 2001·96 cites·23 claims
- 4496US10520882B2Developer supply container and developer supplying systemCANON KK·Filed 2019·Granted Dec 31, 2019·4 cites·21 claims
- 4596US10496033B2Developer supply container and developer supplying systemCANON KK·Filed 2019·Granted Dec 3, 2019·4 cites·28 claims
- 4696US9213262B2Developer supply container and developer supplying systemCANON KK·Filed 2014·Granted Dec 15, 2015·16 cites·29 claims
- 4796US7352975B2Developer supplying apparatusCANON KK·Filed 2005·Granted Apr 1, 2008·26 cites·6 claims
- 4896US7116931B2Toner supply container and image forming apparatusCANON KK·Filed 2005·Granted Oct 3, 2006·19 cites·2 claims
- 4996US7079788B2Developer cartridge and image forming apparatusCANON KK·Filed 2001·Granted Jul 18, 2006·76 cites·18 claims
- 5096US6920298B2Sealing member, toner accommodating container and image forming apparatusCANON KK·Filed 2003·Granted Jul 19, 2005·96 cites·42 claims
Showing the top 50 of 96 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →