Assignee
FDK CORP
JP·199 granted patents·62 pending applications·1,170 citations·filing 1995–2025
Top patents by PatentIndex Score
261 records- 0192USD521166SFlash lightFDK CORP·Filed 2005·Granted May 16, 2006·54 cites·1 claims
- 0291USD984268SBattery trayFDK CORP·Filed 2021·Granted Apr 25, 2023·9 cites·1 claims
- 0390US11932466B2Battery packaging containerFDK CORP·Filed 2022·Granted Mar 19, 2024·2 cites·17 claims
- 0489USD866312SPackaging for batteriesFDK CORP·Filed 2017·Granted Nov 12, 2019·33 cites·1 claims
- 0589US6556117B1Multi-channel uniform output type transformerFDK CORP·Filed 2000·Granted Apr 29, 2003·35 cites·22 claims
- 0688USD833384SBattery holderFDK CORP·Filed 2017·Granted Nov 13, 2018·53 cites·1 claims
- 0788US7605682B2Magnetic core type laminated inductorFDK CORP·Filed 2006·Granted Oct 20, 2009·17 cites·6 claims
- 0887US7072191B2Switching power source circuit for independent per cycle control of ON/OFF time ratioFDK CORP·Filed 2004·Granted Jul 4, 2006·61 cites·16 claims
- 0987US6452473B1Multilayer inductor and method of manufacturing the sameFDK CORP·Filed 2000·Granted Sep 17, 2002·51 cites·8 claims
- 1086USD1022909SBattery trayFDK CORP·Filed 2022·Granted Apr 16, 2024·1 cites·1 claims
- 1186USD981239SBattery trayFDK CORP·Filed 2021·Granted Mar 21, 2023·3 cites·1 claims
- 1286US10097035B2Uninterruptible power supply unitFDK CORP·Filed 2015·Granted Oct 9, 2018·7 cites·2 claims
- 1385USD464454SPortable lampFDK CORP·Filed 2002·Granted Oct 15, 2002·46 cites·1 claims
- 1485US6262651B1Coil deviceFDK CORP·Filed 1999·Granted Jul 17, 2001·45 cites·6 claims
- 1585US6023214ASheet transformerFDK CORP·Filed 1998·Granted Feb 8, 2000·45 cites·6 claims
- 1684US7608366B2Nonaqueous electrolytic secondary battery and method of producing anode material thereofFDK CORP·Filed 2006·Granted Oct 27, 2009·6 cites·3 claims
- 1783US10404095B2Uninterruptible power supply unitFDK CORP·Filed 2015·Granted Sep 3, 2019·6 cites·11 claims
- 1883US9672972B2Winding componentFDK CORP·Filed 2014·Granted Jun 6, 2017·6 cites·3 claims
- 1983US7173182B2Signal transmission cable with connectorFDK CORP·Filed 2004·Granted Feb 6, 2007·57 cites·10 claims
- 2083USD465045SFlashlightFDK CORP·Filed 2002·Granted Oct 29, 2002·32 cites·1 claims
- 2181US10951048B2Charging circuitFDK CORP·Filed 2017·Granted Mar 16, 2021·4 cites·5 claims
- 2281US6885278B2Microconverter and laminated magnetic-core inductorFDK CORP·Filed 2003·Granted Apr 26, 2005·25 cites·7 claims
- 2379US12261477B2Backup power supply device and method for controlling backup power supply deviceFDK CORP·Filed 2021·Granted Mar 25, 2025·2 cites·10 claims
- 2478US11502367B2Battery caseFDK CORP·Filed 2018·Granted Nov 15, 2022·3 cites·8 claims
- 2577USD866311SPackaging for batteriesFDK CORP·Filed 2017·Granted Nov 12, 2019·16 cites·1 claims
- 2676US10110021B2Balancing device and electrical storage deviceFDK CORP·Filed 2014·Granted Oct 23, 2018·7 cites·6 claims
- 2775US11936223B2Battery polarity determination circuit, charger, and electronic deviceFDK CORP·Filed 2019·Granted Mar 19, 2024·2 cites·8 claims
- 2875US11228186B2Charger having failure detection function and failure detection methodFDK CORP·Filed 2019·Granted Jan 18, 2022·2 cites·10 claims
- 2975US10629858B2Sealing body of tube-shaped battery and tube-shaped batteryFDK CORP·Filed 2018·Granted Apr 21, 2020·1 cites·9 claims
- 3075US8878640B2Common-mode choke coilFDK CORP·Filed 2014·Granted Nov 4, 2014·3 cites·3 claims
- 3175USD500377SHeadlampFDK CORP·Filed 2004·Granted Dec 28, 2004·20 cites·1 claims
- 3275US2025385352A1Cylindrical battery and method for producing cylindrical batteryFDK CORP·Filed 2025·Application pending·0 cites
- 3374US10797595B2Power supply and control method for power supplyFDK CORP·Filed 2019·Granted Oct 6, 2020·2 cites·8 claims
- 3474US7238449B2Nonaqueous electrolytic secondary battery and method of producing anode material thereofFDK CORP·Filed 2003·Granted Jul 3, 2007·12 cites·16 claims
- 3573US12482820B2Negative electrode for alkaline storage battery and alkaline storage battery including the negative electrodeFDK CORP·Filed 2022·Granted Nov 25, 2025·0 cites·3 claims
- 3673US11387660B2Automatic chargerFDK CORP·Filed 2019·Granted Jul 12, 2022·2 cites·7 claims
- 3773US2024332636A1Zinc secondary batteryFDK CORP·Filed 2024·Application pending·0 cites
- 3872US11742685B2Charger and charging methodFDK CORP·Filed 2019·Granted Aug 29, 2023·2 cites·8 claims
- 3972US6975200B2Microconverter and laminated magnetic-core inductorFDK CORP·Filed 2005·Granted Dec 13, 2005·4 cites·11 claims
- 4072US6573820B2InductorFDK CORP·Filed 2001·Granted Jun 3, 2003·14 cites·12 claims
- 4172US5821008ABattery provided with explosion-proof componentsFDK CORP·Filed 1996·Granted Oct 13, 1998·64 cites·13 claims
- 4272US2025046793A1BatteryFDK CORP·Filed 2024·Application pending·0 cites
- 4372US2024194863A1Negative electrode for zinc battery and method for manufacturing sameFDK CORP·Filed 2023·Application pending·0 cites
- 4471US12482806B2Hydrogen absorbing alloy negative electrode and nickel-hydrogen secondary battery including the hydrogen absorbing alloy negative electrodeFDK CORP·Filed 2022·Granted Nov 25, 2025·0 cites·2 claims
- 4571US7218196B2Noncontact couplerFDK CORP·Filed 2002·Granted May 15, 2007·12 cites·9 claims
- 4671US2024283031A1Solid-state battery and solid-state battery manufacturing methodFDK CORP·Filed 2024·Application pending·0 cites
- 4771US2025167222A1Nickel-zinc secondary batteryFDK CORP·Filed 2024·Application pending·0 cites
- 4870US11811069B2Catalyst for air electrode, air electrode including catalyst for air electrode, and air secondary battery including air electrodeFDK CORP·Filed 2022·Granted Nov 7, 2023·0 cites·4 claims
- 4970US10536014B2ChargerFDK CORP·Filed 2016·Granted Jan 14, 2020·2 cites·7 claims
- 5070US6809622B2Coil DeviceFDK CORP·Filed 2002·Granted Oct 26, 2004·14 cites·4 claims
Showing the top 50 of 261 patent records by PatentIndex Score.
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