Inventor · disambiguated record
Syuji Watanabe
Also filed as: WATANABE SYUJI
12 granted patents·608 citations·filing 1982–1991
94Inventor score
Top patents by PatentIndex Score
12 records- 0196US4880474AMethod and apparatus for operating vacuum cleanerHITACHI LTD·Filed 1987·Granted Nov 14, 1989·125 cites·9 claims
- 0295USD315624SElectric vacuum cleanerHITACHI LTD·Filed 1989·Granted Mar 19, 1991·60 cites·1 claims
- 0394US4446594AUpright type electric cleanerHITACHI LTD·Filed 1982·Granted May 8, 1984·91 cites·5 claims
- 0490US5144716AElectric cleaner, method for producing same and mount base and bumper for electric cleanerHITACHI LTD·Filed 1989·Granted Sep 8, 1992·85 cites·24 claims
- 0582US4958406AMethod and apparatus for operating vacuum cleanerHITACHI LTD·Filed 1988·Granted Sep 25, 1990·41 cites·10 claims
- 0680US4846768AVariable-speed driving deviceHONDA MOTOR CO LTD·Filed 1988·Granted Jul 11, 1989·33 cites·5 claims
- 0777US5101534ASuction nozzle with rotary brush for vacuum cleanerHITACHI LTD·Filed 1991·Granted Apr 7, 1992·51 cites·2 claims
- 0875US5294872AMethod and apparatus for operating vacuum cleanerHITACHI LTD·Filed 1990·Granted Mar 15, 1994·25 cites·7 claims
- 0972US5166585AMotor control apparatus for an electric vacuum cleanerHITACHI LTD·Filed 1991·Granted Nov 24, 1992·28 cites·33 claims
- 1071US4983895AMethod and apparatus for operating vacuum cleanerHITACHI LTD·Filed 1989·Granted Jan 8, 1991·25 cites·2 claims
- 1168US5054156ASuction nozzle with rotary brush for vacuum cleanerHITACHI LTD·Filed 1989·Granted Oct 8, 1991·34 cites·6 claims
- 1251US5075607AMethod and apparatus for operating vacuum cleanerHITACHI LTD·Filed 1990·Granted Dec 24, 1991·10 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →