Inventor · disambiguated record
Tadashi Fukuda
Also filed as: FUKUDA TADASHI
43 granted patents·12 pending applications·298 citations·filing 1988–2025
97Inventor score
Top patents by PatentIndex Score
55 records- 0192US10859935B2TonerCANON KK·Filed 2019·Granted Dec 8, 2020·7 cites·8 claims
- 0292US7349653B2Developing apparatus and image forming method featuring colored and transparent tonersCANON KK·Filed 2006·Granted Mar 25, 2008·15 cites·6 claims
- 0388US5056209AProcess for manufacturing clad metal tubingSUMITOMO METAL IND·Filed 1989·Granted Oct 15, 1991·72 cites·35 claims
- 0487US7236727B2Image forming apparatusCANON KK·Filed 2005·Granted Jun 26, 2007·9 cites·4 claims
- 0586US8345317B2Copying apparatusCANON KK·Filed 2009·Granted Jan 1, 2013·8 cites·5 claims
- 0686US7430389B2Image forming apparatus with transparent toner developerCANON KK·Filed 2006·Granted Sep 30, 2008·9 cites·16 claims
- 0786US6926558B2Modular jackTDK CORP·Filed 2003·Granted Aug 9, 2005·43 cites·8 claims
- 0884US9891567B2Image forming apparatusCANON KK·Filed 2016·Granted Feb 13, 2018·2 cites·42 claims
- 0983US9828656B2Ni-base alloyMITSUBISHI MATERIALS CORP·Filed 2013·Granted Nov 28, 2017·3 cites·2 claims
- 1082US10656581B2Image forming apparatusCANON KK·Filed 2018·Granted May 19, 2020·2 cites·10 claims
- 1179US7349655B2Developing device and method of forming imagesCANON KK·Filed 2006·Granted Mar 25, 2008·6 cites·8 claims
- 1277US11519056B2Ni-based super-heat-resistant alloy for aircraft engine cases, and aircraft engine case formed of sameHITACHI METALS LTD·Filed 2019·Granted Dec 6, 2022·0 cites·3 claims
- 1377US5284530ADuplex stainless steel having improved corrosion resistanceSUMITOMO METAL IND·Filed 1992·Granted Feb 8, 1994·26 cites·10 claims
- 1477US2023047447A1Ni-BASED SUPER-HEAT-RESISTANT ALLOY FOR AIRCRAFT ENGINE CASES, AND AIRCRAFT ENGINE CASE FORMED OF SAMEHITACHI METALS LTD·Filed 2022·Application pending·0 cites
- 1576US10156806B2Corona discharger and unitCANON KK·Filed 2016·Granted Dec 18, 2018·1 cites·10 claims
- 1673US7558516B2Image forming apparatus wherein a carrier weight ratio in a first supply container and carrier weight ratio in a second supply container are substantially equal to each otherCANON KK·Filed 2007·Granted Jul 7, 2009·4 cites·6 claims
- 1773US2025291294A1Method and apparatus for converting luminance information into density informationCANON KK·Filed 2025·Application pending·0 cites
- 1871US9933746B2Image forming apparatusCANON KK·Filed 2016·Granted Apr 3, 2018·1 cites·26 claims
- 1971US9383700B2Image forming apparatusCANON KK·Filed 2015·Granted Jul 5, 2016·1 cites·11 claims
- 2071US5815286AMethod and apparatus for producing halftone image with threshold matrixDAINIPPON SCREEN MFG·Filed 1995·Granted Sep 29, 1998·47 cites·67 claims
- 2170US7858201B2Titanium oxide photocatalyst, method for producing same and use thereofSUMITOMO METAL IND·Filed 2008·Granted Dec 28, 2010·6 cites·29 claims
- 2269US9507286B2Image forming apparatus having charging member for charging photosensitive memberCANON KK·Filed 2013·Granted Nov 29, 2016·1 cites·6 claims
- 2369US6987934B2Image forming apparatusCANON KK·Filed 2004·Granted Jan 17, 2006·10 cites·14 claims
- 2460US12297525B2Manufacturing method for nickel-based alloy product or titanium-based alloy productPROTERIAL LTD·Filed 2020·Granted May 13, 2025·0 cites·4 claims
- 2558US2024234352A9Stacked chip and fabrication method of stacked chipADVANTEST CORP·Filed 2023·Application pending·0 cites
- 2654US6215386B1Coil deviceTDK CORP·Filed 1999·Granted Apr 10, 2001·16 cites·12 claims
- 2753US9274450B2Charging deviceCANON KK·Filed 2014·Granted Mar 1, 2016·0 cites·5 claims
- 2852US12031190B2Method for producing nickel-based alloy product or titanium-based alloy productPROTERIAL LTD·Filed 2020·Granted Jul 9, 2024·0 cites·4 claims
- 2952US9164417B2Image forming apparatus with developer bearing member velocity controlCANON KK·Filed 2013·Granted Oct 20, 2015·0 cites·6 claims
- 3052US9086644B2Charging deviceCANON KK·Filed 2013·Granted Jul 21, 2015·0 cites·12 claims
- 3151US9116455B2Charging deviceCANON KK·Filed 2013·Granted Aug 25, 2015·0 cites·10 claims
- 3250US9535358B2Charging deviceCANON KK·Filed 2014·Granted Jan 3, 2017·0 cites·21 claims
- 3350US9268249B2Charging deviceCANON KK·Filed 2014·Granted Feb 23, 2016·0 cites·9 claims
- 3450US2017352085A1Part selling systemSCREEN HOLDINGS CO LTD·Filed 2017·Application pending·0 cites
- 3549US9436118B2Image forming apparatus for forming an image to change the potential of a photoconductorCANON KK·Filed 2014·Granted Sep 6, 2016·0 cites·4 claims
- 3649US2023400804A1Image forming apparatus that forms image on sheet using tone correction condition corresponding to process speedCANON KK·Filed 2023·Application pending·0 cites
- 3747US12265338B2Image forming apparatus having controller to control voltage to first and second corona chargersCANON KK·Filed 2023·Granted Apr 1, 2025·0 cites·7 claims
- 3846US10698332B2Image forming apparatusCANON KK·Filed 2019·Granted Jun 30, 2020·0 cites·11 claims
- 3946US9110431B2Image forming apparatusCANON KK·Filed 2013·Granted Aug 18, 2015·0 cites·7 claims
- 4046US8509631B2Image forming apparatusFUKUDA TADASHI·Filed 2011·Granted Aug 13, 2013·0 cites·6 claims
- 4146US4911474AMotorcycle frameYAMAHA MOTOR CO LTD·Filed 1988·Granted Mar 27, 1990·9 cites·6 claims
- 4245US10747149B2Image forming apparatus and image forming systemCANON KK·Filed 2018·Granted Aug 18, 2020·0 cites·10 claims
- 4345US9547251B2Image forming apparatus having controllable potential differenceSUZUKI SHINYA·Filed 2011·Granted Jan 17, 2017·0 cites·2 claims
- 4444US10838316B2Image forming apparatusCANON KK·Filed 2019·Granted Nov 17, 2020·0 cites·17 claims
- 4544US10248046B2Image forming apparatusCANON KK·Filed 2017·Granted Apr 2, 2019·0 cites·6 claims
- 4643US9207557B2Image forming apparatusCANON KK·Filed 2012·Granted Dec 8, 2015·0 cites·6 claims
- 4742US10208364B2Ni-based alloy, ni-based alloy for gas turbine combustor, member for gas turbine combustor, liner member, transition piece member, liner, and transition pieceHITACHI METALS LTD·Filed 2014·Granted Feb 19, 2019·0 cites·9 claims
- 4841US2020096893A1Image forming apparatusCANON KK·Filed 2019·Application pending·0 cites
- 4941US2020096899A1Image forming apparatusCANON KK·Filed 2019·Application pending·0 cites
- 5038US2011243584A1Developing deviceCANON KK·Filed 2011·Application pending·0 cites
Showing the top 50 of 55 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →