Inventor
AKAZAWA SHUMI
JP13 patents
⚠️ This page may combine multiple inventors who share the name “AKAZAWA SHUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RYOBI LTD
12 patentsUS5360073ANov 1, 1994
Battery type screw driver
RYOBI LTD67 citations95
US5441828AAug 15, 1995
Electrode terminal holder for battery drive tool
RYOBI LTD22 citations92
USD314498SFeb 12, 1991
Portable electric drill
RYOBI LTD34 citations92
US5230261AJul 27, 1993
Electric power tool
RYOBI LTD30 citations91
USD295141SApr 12, 1988
Electric drill
RYOBI LTD21 citations82
USD279957SAug 6, 1985
Driver drill
RYOBI LTD23 citations82
USD299808SFeb 14, 1989
Electric drill
RYOBI LTD7 citations73
USD296413SJun 28, 1988
Electric drill
RYOBI LTD11 citations73
US4747733AMay 31, 1988
Electric drill's chuck key holding device
RYOBI LTD11 citations73
US5669453ASep 23, 1997
Power carving tool
RYOBI LTD5 citations62
USD295364SApr 26, 1988
Electric drill
RYOBI LTD5 citations62
US4726794AFeb 23, 1988
Socket for an electric charger of a battery
RYOBI LTD3 citations60