Inventor
FUNABASHI KAZUHIKO
JP66 patents
⚠️ This page may combine multiple inventors who share the name “FUNABASHI KAZUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI KOKI KK
33 patentsUS7521892B2Apr 21, 2009
Cordless power tool with overcurrent protection circuit permitting the overcurrent condition during specified time periods
HITACHI KOKI KK108 citations98
US6566843B2May 20, 2003
DC power source unit with battery charging function
HITACHI KOKI KK81 citations98
US6495932B1Dec 17, 2002
DC power source unit
HITACHI KOKI KK72 citations96
US6172860B1Jan 9, 2001
DC power source unit alarming before electrically powered tool is overheated and stopping power supply thereafter
HITACHI KOKI KK66 citations96
US8381829B2Feb 26, 2013
Battery pack and cordless tool using the same
HITACHI KOKI KK38 citations94
US7677752B2Mar 16, 2010
Power tool equipped with light
HITACHI KOKI KK53 citations94
US9955627B2May 1, 2018
Electric working machine
HITACHI KOKI KK24 citations92
US7969116B2Jun 28, 2011
Power pack and cordless power tool having the same
HITACHI KOKI KK37 citations92
US7446508B2Nov 4, 2008
Battery charger for charging lithium-ion battery
HITACHI KOKI KK27 citations92
US6992464B2Jan 31, 2006
Battery charger capable of indicating time remaining to achieve full charge
HITACHI KOKI KK23 citations92
US8579042B2Nov 12, 2013
Battery pack and cordless tool using the same
HITACHI KOKI KK8 citations84
US7592780B2Sep 22, 2009
Battery charging apparatus
HITACHI KOKI KK16 citations84
US7579807B2Aug 25, 2009
Battery charger
HITACHI KOKI KK13 citations84
US7541773B2Jun 2, 2009
Battery-powered tool capable of detecting discharged battery pack
HITACHI KOKI KK10 citations84
US7365515B2Apr 29, 2008
Universal battery charger
HITACHI KOKI KK13 citations84
US7145314B2Dec 5, 2006
DC power source unit with battery charging function
HITACHI KOKI KK17 citations84
US9496809B2Nov 15, 2016
Electric working machine
HITACHI KOKI KK12 citations83
US7932697B2Apr 26, 2011
Power tool
HITACHI KOKI KK6 citations74
US7439708B2Oct 21, 2008
Battery charger with control of two power supply circuits
HITACHI KOKI KK7 citations74
US6967465B2Nov 22, 2005
DC power source unit with battery charging function
HITACHI KOKI KK7 citations74
US10886764B2Jan 5, 2021
Power tool
HITACHI KOKI KK4 citations73
US10205198B2Feb 12, 2019
Power tool and battery pack
HITACHI KOKI KK2 citations73
US10199844B2Feb 5, 2019
Power-supplying device
HITACHI KOKI KK5 citations73
US10744633B2Aug 18, 2020
Power Tool
HITACHI KOKI KK2 citations72
US10551442B2Feb 4, 2020
Battery diagnosis device and battery pack
HITACHI KOKI KK2 citations72
US10307841B2Jun 4, 2019
Power tool
HITACHI KOKI KK3 citations72
US10547182B2Jan 28, 2020
Electric operating machine
HITACHI KOKI KK2 citations70
US8035350B2Oct 11, 2011
Battery charger
HITACHI KOKI KK5 citations63
US8013575B2Sep 6, 2011
Charging device having protective switching element
HITACHI KOKI KK5 citations63
US7932701B2Apr 26, 2011
Power tool
HITACHI KOKI KK4 citations63
US7800343B2Sep 21, 2010
Battery charger with battery life judging function
HITACHI KOKI KK5 citations63
US7723960B2May 25, 2010
Lithium battery pack
HITACHI KOKI KK5 citations63
US7652450B2Jan 26, 2010
Secondary battery charging device
HITACHI KOKI KK4 citations63
KOKI HOLDINGS CO LTD
7 patentsUS11205820B2Dec 21, 2021
Battery pack, electrical device using battery pack, and electrical device system
KOKI HOLDINGS CO LTD12 citations85
US10630223B2Apr 21, 2020
Power tool
KOKI HOLDINGS CO LTD8 citations84
US10967491B2Apr 6, 2021
Driver
KOKI HOLDINGS CO LTD11 citations82
US12125994B2Oct 22, 2024
Electrical apparatus using battery pack
KOKI HOLDINGS CO LTD0 citations62
US12074296B2Aug 27, 2024
Battery pack, electric apparatus using battery pack, and electric apparatus main body
KOKI HOLDINGS CO LTD0 citations62
US12046721B2Jul 23, 2024
Battery pack and electric apparatus using battery pack
KOKI HOLDINGS CO LTD0 citations62
US11837741B2Dec 5, 2023
Electrical apparatus using battery pack
KOKI HOLDINGS CO LTD1 citations62
ARADACHI TAKAO
3 patentsFUNABASHI KAZUHIKO
2 patentsTAKANO NOBUHIRO
2 patentsYOKOYAMA KOUSEI
1 patentTANIMOTO HIDEYUKI
1 patentOGURA MASAYUKI
1 patentShowing the top 50 of 66 patents by PatentIndex Score.