Inventor · disambiguated record
Koichi Ichikawa
Also filed as: ICHIKAWA KOICHI
15 granted patents·2 pending applications·104 citations·filing 1998–2022
91Inventor score
Files withPRIMEARTH EV ENERGY CO LTD5TOYOTA MOTOR CO LTD4TSUBAKIMOTO CHAIN CO3ICHIKAWA KOICHI2UCHIDA MASATOSHI2
Top patents by PatentIndex Score
17 records- 0192US12476320B2Battery pack, vehicle equipped with battery pack, and replacement method of battery blocks in battery packTOYOTA MOTOR CO LTD·Filed 2022·Granted Nov 18, 2025·1 cites·7 claims
- 0284US9201118B2Control system for a battery assembly and corresponding method of determining whether a battery assembly can be reusedUCHIDA MASATOSHI·Filed 2013·Granted Dec 1, 2015·6 cites·7 claims
- 0383US5989140ABoth-side meshing type silent chainTSUBAKIMOTO CHAIN CO·Filed 1998·Granted Nov 23, 1999·38 cites·3 claims
- 0479US6419604B2Double-meshing-type silent chain drive and sprocket used thereinTSUBAKIMOTO CHAIN CO·Filed 2001·Granted Jul 16, 2002·18 cites·4 claims
- 0578US9692088B2Method for restoring battery capacity, method for restoring battery pack capacity, device for restoring battery capacity, and device for restoring battery pack capacityPRIMEARTH EV ENERGY CO LTD·Filed 2014·Granted Jun 27, 2017·2 cites·8 claims
- 0674US9523740B2Method for determining remaining lifetimeOKUMURA MOTOYOSHI·Filed 2012·Granted Dec 20, 2016·3 cites·8 claims
- 0773US9880225B2Battery state determination devicePRIMEARTH EV ENERGY CO LTD·Filed 2014·Granted Jan 30, 2018·4 cites·4 claims
- 0870US6334829B1Double-meshing-type silent chain drive and sprocket used thereinTSUBAKIMOTO CHAIN CO·Filed 1999·Granted Jan 1, 2002·19 cites·3 claims
- 0969US9431832B2Stationary electrical storage system and control methodICHIKAWA KOICHI·Filed 2014·Granted Aug 30, 2016·5 cites·6 claims
- 1069US9347996B2Remaining life determining system for stationary storage battery, and method of determining remaining life of stationary storage batteryUCHIDA MASATOSHI·Filed 2013·Granted May 24, 2016·2 cites·7 claims
- 1168US9995792B2Battery state determination device determining a micro-short-circuiting tendency of a rechargeable batteryPRIMEARTH EV ENERGY CO LTD·Filed 2014·Granted Jun 12, 2018·3 cites·7 claims
- 1266US9453887B2Method of selecting used secondary battery and method of manufacturing battery packPRIMEARTH EV ENERGY CO LTD·Filed 2014·Granted Sep 27, 2016·2 cites·9 claims
- 1358US9413041B2Method for adjusting nickel-metal hydride storage batteryPRIMEARTH EV ENERGY CO LTD·Filed 2014·Granted Aug 9, 2016·1 cites·3 claims
- 1455US10328928B2Hybrid vehicle including a mode selection deviceTOYOTA MOTOR CO LTD·Filed 2018·Granted Jun 25, 2019·0 cites·8 claims
- 1545US10821996B2Motor-driven vehicleTOYOTA MOTOR CO LTD·Filed 2018·Granted Nov 3, 2020·0 cites·5 claims
- 1638US2015338471A1Reconstructed battery pack applicability determination method for used secondary battery, and reconstruction method for reconstructed battery packTOYOTA MOTOR CO LTD·Filed 2015·Application pending·0 cites
- 1737US2013294479A1Electric storage systemICHIKAWA KOICHI·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →