Inventor · disambiguated record
Hiroyuki Hanawa
Also filed as: HANAWA HIROYUKI
30 granted patents·14 pending applications·392 citations·filing 2006–2023
96Inventor score
Top patents by PatentIndex Score
44 records- 0198US7521892B2Cordless power tool with overcurrent protection circuit permitting the overcurrent condition during specified time periodsHITACHI KOKI KK·Filed 2006·Granted Apr 21, 2009·108 cites·17 claims
- 0296US7446508B2Battery charger for charging lithium-ion batteryHITACHI KOKI KK·Filed 2006·Granted Nov 4, 2008·27 cites·29 claims
- 0395USD562227SBattery packHITACHI KOKI KK·Filed 2007·Granted Feb 19, 2008·64 cites·1 claims
- 0494US9236588B2Battery pack and power tool provided with the sameHITACHI KOKI KK·Filed 2014·Granted Jan 12, 2016·11 cites·5 claims
- 0592US11205820B2Battery pack, electrical device using battery pack, and electrical device systemKOKI HOLDINGS CO LTD·Filed 2017·Granted Dec 21, 2021·12 cites·24 claims
- 0691US10263228B2Electric device including sealing member between attachment part and battery packHITACHI KOKI KK·Filed 2013·Granted Apr 16, 2019·7 cites·7 claims
- 0791US8381829B2Battery pack and cordless tool using the sameHITACHI KOKI KK·Filed 2007·Granted Feb 26, 2013·38 cites·15 claims
- 0891US7969116B2Power pack and cordless power tool having the sameHITACHI KOKI KK·Filed 2006·Granted Jun 28, 2011·37 cites·41 claims
- 0987US12074296B2Battery pack, electric apparatus using battery pack, and electric apparatus main bodyKOKI HOLDINGS CO LTD·Filed 2023·Granted Aug 27, 2024·0 cites·21 claims
- 1085US8579042B2Battery pack and cordless tool using the sameHITACHI KOKI KK·Filed 2013·Granted Nov 12, 2013·8 cites·13 claims
- 1183US7759899B2Battery pack, and assembly of battery pack and motor-driven tool or chargerHITACHI KOKI KK·Filed 2007·Granted Jul 20, 2010·5 cites·17 claims
- 1282US12046721B2Battery pack and electric apparatus using battery packKOKI HOLDINGS CO LTD·Filed 2022·Granted Jul 23, 2024·0 cites·22 claims
- 1382US11824169B2Battery pack, electrical device using battery pack, and electrical device systemKOKI HOLDINGS CO LTD·Filed 2017·Granted Nov 21, 2023·1 cites·19 claims
- 1482US8765280B2Battery pack and battery-driven power tool using the sameUEDA TAKASHI·Filed 2008·Granted Jul 1, 2014·6 cites·40 claims
- 1582US2024055674A1Battery pack, electric device using battery pack, and electric device systemKOKI HOLDINGS CO LTD·Filed 2023·Application pending·0 cites
- 1681USD607814SBattery packHITACHI KOKI KK·Filed 2008·Granted Jan 12, 2010·25 cites·1 claims
- 1779US11837741B2Electrical apparatus using battery packKOKI HOLDINGS CO LTD·Filed 2018·Granted Dec 5, 2023·1 cites·14 claims
- 1878US7956575B2Charging device for batteryHITACHI KOKI KK·Filed 2007·Granted Jun 7, 2011·15 cites·9 claims
- 1973US12125994B2Electrical apparatus using battery packKOKI HOLDINGS CO LTD·Filed 2023·Granted Oct 22, 2024·0 cites·8 claims
- 2073US8895182B2Battery pack and power tool provided with the sameHANAWA HIROYUKI·Filed 2008·Granted Nov 25, 2014·2 cites·21 claims
- 2172US11367907B2Battery pack and electric apparatus using battery packKOKI HOLDINGS CO LTD·Filed 2018·Granted Jun 21, 2022·0 cites·16 claims
- 2272US8684106B2Battery pack and motor-driven tool using the sameHANAWA HIROYUKI·Filed 2010·Granted Apr 1, 2014·7 cites·31 claims
- 2370US11710860B2Battery pack and electrical apparatus using battery packKOKI HOLDINGS CO LTD·Filed 2018·Granted Jul 25, 2023·1 cites·20 claims
- 2468US7807293B2Battery pack and motor-driven tool using the sameHITACHI KOKI KK·Filed 2007·Granted Oct 5, 2010·8 cites·6 claims
- 2563US8035350B2Battery chargerHITACHI KOKI KK·Filed 2007·Granted Oct 11, 2011·5 cites·7 claims
- 2663US2023420775A1Battery pack, electrical device, and electrical device main bodyKOKI HOLDINGS CO LTD·Filed 2021·Application pending·0 cites
- 2762US9748534B2Electric tool and battery pack for the electric toolHITACHI KOKI KK·Filed 2014·Granted Aug 29, 2017·3 cites·17 claims
- 2860US2022384894A1Battery pack and electrical instrumentKOKI HOLDINGS CO LTD·Filed 2020·Application pending·0 cites
- 2958US2023010270A1Battery pack and electrical apparatus using sameKOKI HOLDINGS CO LTD·Filed 2021·Application pending·0 cites
- 3057US2024258606A1Battery pack and electrical deviceKOKI HOLDINGS CO LTD·Filed 2022·Application pending·0 cites
- 3155US2024266619A1Battery pack and electric deviceKOKI HOLDINGS CO LTD·Filed 2022·Application pending·0 cites
- 3253US12101830B2Battery pack and electric device systemKOKI HOLDINGS CO LTD·Filed 2020·Granted Sep 24, 2024·0 cites·20 claims
- 3353US2006170395A1Tool storage caseYOSHIMIZU CHIKAI·Filed 2006·Application pending·0 cites
- 3453US2022223949A1Battery pack and electric deviceKOKI HOLDINGS CO LTD·Filed 2020·Application pending·0 cites
- 3552US7948210B2Battery pack and electric toolHITACHI KOKI KK·Filed 2008·Granted May 24, 2011·1 cites·10 claims
- 3648US11637433B2Battery pack and electrical apparatusKOKI HOLDINGS CO LTD·Filed 2018·Granted Apr 25, 2023·0 cites·19 claims
- 3748US2011253402A1Battery Pack and Cordless Power Tool Having The SameARADACHI TAKAO·Filed 2011·Application pending·0 cites
- 3847US2022094178A1Battery pack and electric device systemKOKI HOLDINGS CO LTD·Filed 2019·Application pending·0 cites
- 3945US12224407B2Battery pack and wireless linking systemKOKI HOLDINGS CO LTD·Filed 2019·Granted Feb 11, 2025·0 cites·21 claims
- 4045US11229997B2Working machineHITACHI KOKI KK·Filed 2016·Granted Jan 25, 2022·0 cites·23 claims
- 4144US2010176761A1Battery Charging DeviceHITACHI KOKI KK·Filed 2007·Application pending·0 cites
- 4243US2011025269A1Battery chargerFUNABASHI KAZUHIKO·Filed 2007·Application pending·0 cites
- 4341US2013095350A1Battery pack and power toolARADACHI TAKAO·Filed 2011·Application pending·0 cites
- 4441US2014001853A1Charger and power supply systemHANAWA HIROYUKI·Filed 2012·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →