Inventor
FUJIO MASAYUKI
JP13 patents
⚠️ This page may combine multiple inventors who share the name “FUJIO MASAYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
11 patentsUS5569023AOct 29, 1996
Vortex blower
HITACHI LTD28 citations92
US5487639AJan 30, 1996
Vortex flow blower and vane wheel therefor
HITACHI LTD19 citations92
US5281083AJan 25, 1994
Vortex flow blower
HITACHI LTD28 citations91
US5395210AMar 7, 1995
Vortex flow blower having blades each formed by curved surface and method of manufacturing the same
HITACHI LTD34 citations90
US5672052ASep 30, 1997
Blower muffling apparatus
HITACHI LTD45 citations88
US4412781ANov 1, 1983
Vortex blower
HITACHI LTD23 citations82
US5536139AJul 16, 1996
Vortex flow blower having blades each formed by curved surface
HITACHI LTD18 citations80
US5628615AMay 13, 1997
Vortex flow blower and vane wheel therefor
HITACHI LTD11 citations73
US5600886AFeb 11, 1997
Method of making vortex flow blower and vane wheel therefor
HITACHI LTD5 citations73
USD327316SJun 23, 1992
Vortex blower
HITACHI LTD6 citations72
US5697152ADec 16, 1997
Method of manufacturing an impeller
HITACHI LTD12 citations71