Inventor
FUJISAWA HARUHISA
JP30 patents
⚠️ This page may combine multiple inventors who share the name “FUJISAWA HARUHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI KOKI KK
25 patentsUS6886730B2May 3, 2005
Combustion-powered driving tool
HITACHI KOKI KK904 citations99
US7932694B2Apr 26, 2011
Battery charger operable for selective one of a plurality of power supplies
HITACHI KOKI KK20 citations93
USD575224SAug 19, 2008
Battery pack
HITACHI KOKI KK40 citations92
US7063052B2Jun 20, 2006
Combustion type power tool having fin in low turbulent combustion region within combustion chamber
HITACHI KOKI KK28 citations92
US7021251B2Apr 4, 2006
Combustion type power tool having avoiding unit for avoiding overheating to mechanical components in the tool
HITACHI KOKI KK36 citations92
US9236588B2Jan 12, 2016
Battery pack and power tool provided with the same
HITACHI KOKI KK11 citations84
US7743955B2Jun 29, 2010
Combustion type power tool having fan
HITACHI KOKI KK10 citations84
US7467739B2Dec 23, 2008
Combustion-powered, fastener-driving tool generating sparks in succession when triggered
HITACHI KOKI KK11 citations84
US7073468B2Jul 11, 2006
Combustion type power tool having motor suspension arrangement
HITACHI KOKI KK12 citations84
US7500587B2Mar 10, 2009
Combustion-type power tool
HITACHI KOKI KK6 citations74
US7387092B2Jun 17, 2008
Combustion-type power tool having cooling arrangement
HITACHI KOKI KK7 citations74
US7225768B2Jun 5, 2007
Combustion type power tool having buffer piece
HITACHI KOKI KK8 citations74
US7121442B2Oct 17, 2006
Combustion-type power tool
HITACHI KOKI KK9 citations74
US9391305B2Jul 12, 2016
Backpack-type power supply including operation portion
HITACHI KOKI KK4 citations72
USD689432SSep 10, 2013
Rechargeable battery
HITACHI KOKI KK4 citations63
US7484481B2Feb 3, 2009
Combustion-type power tool having switch protection arrangement
HITACHI KOKI KK3 citations63
US7455036B2Nov 25, 2008
Combustion type power tool having fin in low turbulent combustion region within combustion chamber
HITACHI KOKI KK3 citations63
US7316209B2Jan 8, 2008
Combustion type power tool having buffer piece
HITACHI KOKI KK4 citations63
US7305940B2Dec 11, 2007
Combustion-type power tool having ignition proof arrangement
HITACHI KOKI KK4 citations63
US7305941B2Dec 11, 2007
Combustion type power tool having motor suspension arrangement
HITACHI KOKI KK2 citations63
US7237515B2Jul 3, 2007
Combustion-type power tool having cooling arrangement
HITACHI KOKI KK2 citations63
US7210431B2May 1, 2007
Combustion-type power tool with exhaust gas flow regulating rib
HITACHI KOKI KK6 citations63
US7131404B2Nov 7, 2006
Combustion-type power tool having gas canister cooling arrangement
HITACHI KOKI KK2 citations63
US9496536B2Nov 15, 2016
Backpack-type power supply
HITACHI KOKI KK2 citations60
US7293541B2Nov 13, 2007
Combustion-type power tool having ignition proof arrangement
HITACHI KOKI KK0 citations42