Inventor
IWASE YUKIJI
JP18 patents
⚠️ This page may combine multiple inventors who share the name “IWASE YUKIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
16 patentsUS5689572ANov 18, 1997
Method of actively controlling noise, and apparatus thereof
HITACHI LTD123 citations97
US5110266AMay 5, 1992
Electric blower having improved return passage for discharged air flow
HITACHI LTD138 citations97
US5595473AJan 21, 1997
Centrifugal fluid machine
HITACHI LTD39 citations95
US5427102AJun 27, 1995
Active noise cancellation apparatus in MRI apparatus
HITACHI LTD88 citations94
US6568904B1May 27, 2003
Fluidal machine
HITACHI LTD22 citations92
US5365633ANov 22, 1994
Vacuum cleaner
HITACHI LTD35 citations92
US6282749B1Sep 4, 2001
Vacuum cleaner and suction nozzle body thereof cross reference to related application
HITACHI LTD25 citations90
US6212732B1Apr 10, 2001
Vacuum cleaner and suction nozzle body therefor
HITACHI LTD30 citations90
US6371724B2Apr 16, 2002
Centrifugal fluid machine
HITACHI LTD13 citations81
US5971705AOct 26, 1999
Centrifugal fluid machine
HITACHI LTD11 citations81
US5857834AJan 12, 1999
Centrifugal fluid machine
HITACHI LTD11 citations81
US6364607B2Apr 2, 2002
Centrifugal fluid machine
HITACHI LTD6 citations73
US6312222B1Nov 6, 2001
Centrifugal fluid machine
HITACHI LTD5 citations73
US6290460B1Sep 18, 2001
Centrifugal fluid machine
HITACHI LTD7 citations73
US6139266AOct 31, 2000
Centrifugal fluid machine
HITACHI LTD6 citations73
US6749397B2Jun 15, 2004
Fluidal machine
HITACHI LTD4 citations62