Inventor · disambiguated record
Shumi Akazawa
Also filed as: AKAZAWA SHUMI
13 granted patents·332 citations·filing 1983–1996
93Inventor score
Top patents by PatentIndex Score
13 records- 0197US5662440ARouter attachmentRYOBI NORTH AMERICA INC·Filed 1996·Granted Sep 2, 1997·93 cites·10 claims
- 0292US5360073ABattery type screw driverRYOBI LTD·Filed 1993·Granted Nov 1, 1994·67 cites·10 claims
- 0391USD314498SPortable electric drillRYOBI LTD·Filed 1988·Granted Feb 12, 1991·34 cites·1 claims
- 0487USD279957SDriver drillRYOBI LTD·Filed 1983·Granted Aug 6, 1985·23 cites·1 claims
- 0583USD295141SElectric drillRYOBI LTD·Filed 1985·Granted Apr 12, 1988·21 cites·1 claims
- 0673US5230261AElectric power toolRYOBI LTD·Filed 1992·Granted Jul 27, 1993·30 cites·11 claims
- 0768USD296413SElectric drillRYOBI LTD·Filed 1985·Granted Jun 28, 1988·11 cites·1 claims
- 0859US5441828AElectrode terminal holder for battery drive toolRYOBI LTD·Filed 1994·Granted Aug 15, 1995·22 cites·14 claims
- 0958USD299808SElectric drillRYOBI LTD·Filed 1988·Granted Feb 14, 1989·7 cites·1 claims
- 1050US4747733AElectric drill's chuck key holding deviceRYOBI LTD·Filed 1987·Granted May 31, 1988·11 cites·6 claims
- 1149USD295364SElectric drillRYOBI LTD·Filed 1986·Granted Apr 26, 1988·5 cites·1 claims
- 1236US5669453APower carving toolRYOBI LTD·Filed 1995·Granted Sep 23, 1997·5 cites·13 claims
- 1328US4726794ASocket for an electric charger of a batteryRYOBI LTD·Filed 1987·Granted Feb 23, 1988·3 cites·7 claims
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