Inventor
KAWAHARA TOMOYUKI
JP18 patents
⚠️ This page may combine multiple inventors who share the name “KAWAHARA TOMOYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI KOKI KK
15 patentsUSD675500SFeb 5, 2013
Portable electric driver
HITACHI KOKI KK50 citations98
USD622661SAug 31, 2010
Battery pack
HITACHI KOKI KK84 citations98
USD553562SOct 23, 2007
Battery pack
HITACHI KOKI KK51 citations96
USD544436SJun 12, 2007
Battery pack
HITACHI KOKI KK52 citations95
USD592028SMay 12, 2009
Portable electric hammer drill
HITACHI KOKI KK36 citations92
USD591916SMay 5, 2009
Engine blower
HITACHI KOKI KK21 citations92
USD585716SFeb 3, 2009
Portable electric driver
HITACHI KOKI KK40 citations92
US7039548B2May 2, 2006
Miter saw for displaying angle of cutter blade cutting workpiece
HITACHI KOKI KK30 citations92
USD551930SOct 2, 2007
Reciprocating saw
HITACHI KOKI KK14 citations84
USD792182SJul 18, 2017
Jig saw
HITACHI KOKI KK6 citations83
USD623197SSep 7, 2010
Engine
HITACHI KOKI KK8 citations82
USD618976SJul 6, 2010
Nailing machine
HITACHI KOKI KK6 citations74
US7778796B2Aug 17, 2010
Miter saw for displaying angle of cutter blade cutting workpiece
HITACHI KOKI KK6 citations73
USD689432SSep 10, 2013
Rechargeable battery
HITACHI KOKI KK4 citations63
USD595552SJul 7, 2009
Portable electric saw
HITACHI KOKI KK3 citations62