Inventor · disambiguated record
Fumio Jyoraku
Also filed as: JYORAKU FUMIO
18 granted patents·855 citations·filing 1987–2010
96Inventor score
Files withHITACHI LTD18
Top patents by PatentIndex Score
18 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
- 0489US6442792B1Vacuum cleanerHITACHI LTD·Filed 2000·Granted Sep 3, 2002·68 cites·23 claims
- 0589US4767285AElectric blowerHITACHI LTD·Filed 1987·Granted Aug 30, 1988·89 cites·21 claims
- 0687US6146094AMotor-driven blower and method of manufacturing impeller for motor-driven blowerHITACHI LTD·Filed 1998·Granted Nov 14, 2000·83 cites·7 claims
- 0786US7768171B2Rotor of permanent magnet rotating electric machineHITACHI LTD·Filed 2008·Granted Aug 3, 2010·11 cites·7 claims
- 0882US4958406AMethod and apparatus for operating vacuum cleanerHITACHI LTD·Filed 1988·Granted Sep 25, 1990·41 cites·10 claims
- 0975US5294872AMethod and apparatus for operating vacuum cleanerHITACHI LTD·Filed 1990·Granted Mar 15, 1994·25 cites·7 claims
- 1072US5166585AMotor control apparatus for an electric vacuum cleanerHITACHI LTD·Filed 1991·Granted Nov 24, 1992·28 cites·33 claims
- 1171US4983895AMethod and apparatus for operating vacuum cleanerHITACHI LTD·Filed 1989·Granted Jan 8, 1991·25 cites·2 claims
- 1270US7417348B2Rotor of permanent magnet rotating electric machineHITACHI LTD·Filed 2003·Granted Aug 26, 2008·12 cites·13 claims
- 1366US7880358B2Rotor of permanent magnet rotating electric machineHITACHI LTD·Filed 2010·Granted Feb 1, 2011·1 cites·4 claims
- 1459US5381584AVacuum cleanerHITACHI LTD·Filed 1993·Granted Jan 17, 1995·27 cites·18 claims
- 1551US5075607AMethod and apparatus for operating vacuum cleanerHITACHI LTD·Filed 1990·Granted Dec 24, 1991·10 cites·8 claims
- 1651US4955105AVacuum cleanerHITACHI LTD·Filed 1988·Granted Sep 11, 1990·20 cites·30 claims
- 1734USD302878SElectric vacuum cleanerHITACHI LTD·Filed 1987·Granted Aug 15, 1989·1 cites·1 claims
- 1833US5027469AVacuum 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 →