Inventor
JYORAKU FUMIO
JP18 patents
Patents
18 patentsUS5243732ASep 14, 1993
Vacuum cleaner with fuzzy logic control
HITACHI LTD142 citations97
US5110266AMay 5, 1992
Electric blower having improved return passage for discharged air flow
HITACHI LTD138 citations97
US4880474ANov 14, 1989
Method and apparatus for operating vacuum cleaner
HITACHI LTD125 citations96
US6146094ANov 14, 2000
Motor-driven blower and method of manufacturing impeller for motor-driven blower
HITACHI LTD83 citations95
US6442792B1Sep 3, 2002
Vacuum cleaner
HITACHI LTD68 citations94
US5294872AMar 15, 1994
Method and apparatus for operating vacuum cleaner
HITACHI LTD25 citations92
US5166585ANov 24, 1992
Motor control apparatus for an electric vacuum cleaner
HITACHI LTD28 citations92
US4983895AJan 8, 1991
Method and apparatus for operating vacuum cleaner
HITACHI LTD25 citations92
US4958406ASep 25, 1990
Method and apparatus for operating vacuum cleaner
HITACHI LTD41 citations92
US5381584AJan 17, 1995
Vacuum cleaner
HITACHI LTD27 citations91
US4767285AAug 30, 1988
Electric blower
HITACHI LTD89 citations91
US7768171B2Aug 3, 2010
Rotor of permanent magnet rotating electric machine
HITACHI LTD11 citations83
US7417348B2Aug 26, 2008
Rotor of permanent magnet rotating electric machine
HITACHI LTD12 citations83
US4955105ASep 11, 1990
Vacuum cleaner
HITACHI LTD20 citations78
US5075607ADec 24, 1991
Method and apparatus for operating vacuum cleaner
HITACHI LTD10 citations73
US5027469AJul 2, 1991
Vacuum cleaner
HITACHI LTD9 citations69
US7880358B2Feb 1, 2011
Rotor of permanent magnet rotating electric machine
HITACHI LTD1 citations62
USD302878SAug 15, 1989
Electric vacuum cleaner
HITACHI LTD1 citations51