Inventor · disambiguated record
Hisanori Toyoshima
Also filed as: TOYOSHIMA HISANORI
10 granted patents·570 citations·filing 1987–1993
93Inventor score
Files withHITACHI LTD10
Top patents by PatentIndex Score
10 records- 0196US5110266AElectric blower having improved return passage for discharged air flowHITACHI LTD·Filed 1990·Granted May 5, 1992·138 cites·8 claims
- 0296US4880474AMethod and apparatus for operating vacuum cleanerHITACHI LTD·Filed 1987·Granted Nov 14, 1989·125 cites·9 claims
- 0394US5243732AVacuum cleaner with fuzzy logic controlHITACHI LTD·Filed 1991·Granted Sep 14, 1993·142 cites·16 claims
- 0482US4958406AMethod and apparatus for operating vacuum cleanerHITACHI LTD·Filed 1988·Granted Sep 25, 1990·41 cites·10 claims
- 0575US5294872AMethod and apparatus for operating vacuum cleanerHITACHI LTD·Filed 1990·Granted Mar 15, 1994·25 cites·7 claims
- 0672US5166585AMotor control apparatus for an electric vacuum cleanerHITACHI LTD·Filed 1991·Granted Nov 24, 1992·28 cites·33 claims
- 0771US4983895AMethod and apparatus for operating vacuum cleanerHITACHI LTD·Filed 1989·Granted Jan 8, 1991·25 cites·2 claims
- 0859US5381584AVacuum cleanerHITACHI LTD·Filed 1993·Granted Jan 17, 1995·27 cites·18 claims
- 0951US5075607AMethod and apparatus for operating vacuum cleanerHITACHI LTD·Filed 1990·Granted Dec 24, 1991·10 cites·8 claims
- 1033US5027469AVacuum cleanerHITACHI LTD·Filed 1990·Granted Jul 2, 1991·9 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →