Inventor
YOKOYAMA YOSHIKAZU
JP10 patents
⚠️ This page may combine multiple inventors who share the name “YOKOYAMA YOSHIKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI KOKI KK
6 patentsUSD591916SMay 5, 2009
Engine blower
HITACHI KOKI KK21 citations92
USD638035SMay 17, 2011
Engine blower
HITACHI KOKI KK23 citations90
US6863135B2Mar 8, 2005
Electric power tool
HITACHI KOKI KK15 citations90
US6909207B2Jun 21, 2005
Electric tool and its insulating method
HITACHI KOKI KK15 citations81
US6619410B2Sep 16, 2003
Electric power tool
HITACHI KOKI KK4 citations60
US9144923B2Sep 29, 2015
Portable cutting machine
HITACHI KOKI KK3 citations57