Inventor · disambiguated record
Masato Fujikawa
Also filed as: FUJIKAWA MASATO
58 granted patents·35 pending applications·724 citations·filing 2000–2024
98Inventor score
Files withFUJIKAWA MASATO20PANASONIC CORP12SANYO ELECTRIC CO7YOKOYAMA TOMOHIKO7MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5
Top patents by PatentIndex Score
93 records- 0198US7754375B2Lithium ion secondary battery and method for producing the samePANASONIC CORP·Filed 2006·Granted Jul 13, 2010·52 cites·22 claims
- 0298US7419743B2Cylindrical lithium battery resistant to breakage of the porous heat resistant layerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Sep 2, 2008·49 cites·6 claims
- 0398US7378185B2Prismatic lithium secondary battery having a porous heat resistant layerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted May 27, 2008·49 cites·5 claims
- 0496US6492742B1Electric torque converter mounted on parallel hybrid vehicleJATCO TRANSTECHNOLOGY LTD·Filed 2000·Granted Dec 10, 2002·77 cites·7 claims
- 0595US9437854B2Battery packPANASONIC CORP·Filed 2012·Granted Sep 6, 2016·13 cites·12 claims
- 0695US8163409B2Evaluation method for safety upon battery internal short circuit, evaluation device for safety upon battery internal short circuit, battery, battery pack, and manufacturing method for battery and battery packFUJIKAWA MASATO·Filed 2007·Granted Apr 24, 2012·34 cites·49 claims
- 0794US8592067B2Battery pack having a heat insulating layerYOKOYAMA TOMOHIKO·Filed 2010·Granted Nov 26, 2013·13 cites·13 claims
- 0894US8334699B2Battery internal short-circuit detection apparatus and method, and battery packASAKURA JUN·Filed 2008·Granted Dec 18, 2012·33 cites·13 claims
- 0993US8592076B2Battery packSUGITA YASUNARI·Filed 2011·Granted Nov 26, 2013·14 cites·9 claims
- 1091US9368995B2Lithium ion battery charging method and battery-equipped devicePANASONIC CORP·Filed 2012·Granted Jun 14, 2016·19 cites·14 claims
- 1190US8287425B2Vehicular transmissionOMOTE KENJI·Filed 2006·Granted Oct 16, 2012·24 cites·24 claims
- 1290US8168314B2Method for evaluating internal short-circuit of battery, device for evaluating internal short-circuit of battery, battery, battery pack and their manufacturing methodsFUJIKAWA MASATO·Filed 2007·Granted May 1, 2012·10 cites·39 claims
- 1390US7637336B2Hydraulic circuit device and hybrid drive system using that hydraulic circuit deviceAISIN AW CO·Filed 2006·Granted Dec 29, 2009·22 cites·20 claims
- 1490US6840341B2Parallel hybrid vehicleJATCO LTD·Filed 2002·Granted Jan 11, 2005·62 cites·20 claims
- 1589US9231237B2Cell moduleSHIMIZU KEISUKE·Filed 2011·Granted Jan 5, 2016·6 cites·11 claims
- 1689US8471566B2Internal short circuit evaluation apparatus for batteryNISHINO HAJIME·Filed 2010·Granted Jun 25, 2013·6 cites·11 claims
- 1789US8017262B2Lithium secondary battery with porous heat-resistant layerPANASONIC CORP·Filed 2006·Granted Sep 13, 2011·8 cites·12 claims
- 1888US6474428B1Electric torque converter mounted on parallel hybrid vehicleJATCO TRANSTECHNOLOGY LTD·Filed 2000·Granted Nov 5, 2002·77 cites·7 claims
- 1987US8081000B2Evaluation method and evaluation apparatus for evaluating battery safety, and battery whose safety indices have been determined with the sameKASAMATSU SHINJI·Filed 2008·Granted Dec 20, 2011·8 cites·12 claims
- 2085US8138747B2Evaluation method for evaluating battery safety in the event of internal short circuit and evaluation apparatus used thereforNISHINO HAJIME·Filed 2008·Granted Mar 20, 2012·6 cites·17 claims
- 2185US6805211B2Parallel hybrid vehicleJATCO LTD·Filed 2002·Granted Oct 19, 2004·40 cites·15 claims
- 2283US8846235B2Battery moduleYOKOYAMA TOMOHIKO·Filed 2011·Granted Sep 30, 2014·3 cites·5 claims
- 2382US8426048B2Battery pack, electronic apparatus equipped with the same and electronic apparatus equipped with battery housing partFUJIKAWA MASATO·Filed 2009·Granted Apr 23, 2013·4 cites·19 claims
- 2481US8318337B2Battery including electrode lead having high resistant portionYOKOYAMA TOMOHIKO·Filed 2009·Granted Nov 27, 2012·4 cites·12 claims
- 2581US8048569B2Non-aqueous electrolyte secondary batteryPANASONIC CORP·Filed 2008·Granted Nov 1, 2011·4 cites·9 claims
- 2680US9735406B2Battery packPANASONIC CORP·Filed 2012·Granted Aug 15, 2017·2 cites·8 claims
- 2780US8455132B2Lithium ion secondary battery and charge system thereforFUJIKAWA MASATO·Filed 2007·Granted Jun 4, 2013·4 cites·13 claims
- 2878US9293794B2Battery moduleFUJIKAWA MASATO·Filed 2011·Granted Mar 22, 2016·2 cites·3 claims
- 2978US8389153B2BatteryFUJIKAWA MASATO·Filed 2009·Granted Mar 5, 2013·3 cites·8 claims
- 3077US8871369B2Hermetic batterySHIMIZU KEISUKE·Filed 2011·Granted Oct 28, 2014·2 cites·5 claims
- 3177US8318347B2Lithium ion secondary batteryYOKOYAMA TOMOHIKO·Filed 2008·Granted Nov 27, 2012·4 cites·7 claims
- 3276US9831479B2Sealed type batterySANYO ELECTRIC CO·Filed 2013·Granted Nov 28, 2017·1 cites·12 claims
- 3375US9520588B2Nonaqueous electrolyte secondary cellSUGITA YASUNARI·Filed 2012·Granted Dec 13, 2016·2 cites·5 claims
- 3475US7560901B2Internal short detection apparatus for secondary-battery, internal short detection method for secondary-battery, battery-pack, and electronic equipmentPANASONIC CORP·Filed 2006·Granted Jul 14, 2009·13 cites·11 claims
- 3574US8088510B2Lithium secondary battery comprising double-structured battery caseFUJIKAWA MASATO·Filed 2010·Granted Jan 3, 2012·1 cites·6 claims
- 3673US9337454B2Battery pack including gas absorption portionYOKOYAMA TOMOHIKO·Filed 2011·Granted May 10, 2016·1 cites·6 claims
- 3773US7679739B2Device and method for measuring microporous film on battery electrode plate, coater equipped with film measuring device, and coating method using film measuring methodPANASONIC CORP·Filed 2006·Granted Mar 16, 2010·7 cites·9 claims
- 3872US7819768B2Hydraulic control apparatus of transmissionAISIN AW CO·Filed 2007·Granted Oct 26, 2010·9 cites·20 claims
- 3971US12330502B2VehicleTOYOTA MOTOR CO LTD·Filed 2023·Granted Jun 17, 2025·0 cites·6 claims
- 4069US10164228B2Sealed type batterySANYO ELECTRIC CO·Filed 2017·Granted Dec 25, 2018·0 cites·12 claims
- 4168US9093704B2Non-aqueous electrolyte secondary batteryYOKOYAMA TOMOHIKO·Filed 2008·Granted Jul 28, 2015·1 cites·7 claims
- 4268US9088031B2Battery moduleSHIMIZU KEISUKE·Filed 2011·Granted Jul 21, 2015·3 cites·13 claims
- 4368US7695854B2Lithium secondary batteryPANASONIC CORP·Filed 2007·Granted Apr 13, 2010·1 cites·3 claims
- 4468US7071653B2Method for charging a non-aqueous electrolyte secondary battery and charger thereforMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jul 4, 2006·22 cites·14 claims
- 4567US9866052B2Secondary battery charging system and method, and battery packSANYO ELECTRIC CO·Filed 2014·Granted Jan 9, 2018·4 cites·18 claims
- 4666US2025132632A1Motor caseTOYOTA MOTOR CO LTD·Filed 2024·Application pending·0 cites
- 4764US7811696B2Lithium secondary battery and method for producing the samePANASONIC CORP·Filed 2006·Granted Oct 12, 2010·1 cites·11 claims
- 4863US8309250B2Battery having fire extinguishing element in mesh formNISHINO HAJIME·Filed 2009·Granted Nov 13, 2012·3 cites·14 claims
- 4958US8530072B2Lithium secondary battery having porous heat resistant layer between electrodesFUJIKAWA MASATO·Filed 2007·Granted Sep 10, 2013·0 cites·6 claims
- 5056US2011052971A1BatteryFUJIKAWA MASATO·Filed 2009·Application pending·0 cites
Showing the top 50 of 93 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →