Inventor
MIURA HARUO
JP36 patents
⚠️ This page may combine multiple inventors who share the name “MIURA HARUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
28 patentsUS6462492B1Oct 8, 2002
Position-sensorless controlling method of synchronous motor
HITACHI LTD147 citations98
US6396229B1May 28, 2002
Method of estimating a rotor position of synchronous motor, method of controlling synchronous motor with no position sensor and a controller of synchronous motor
HITACHI LTD259 citations98
US6047461AApr 11, 2000
Rotor for permanent magnet excited, high-speed electric rotary machine, manufacturing method of the same and electric rotary machine including the same
HITACHI LTD112 citations98
US5980218ANov 9, 1999
Multi-stage compressor having first and second passages for cooling a motor during load and non-load operation
HITACHI LTD111 citations98
US6196809B1Mar 6, 2001
Two-stage centrifugal compressor
HITACHI LTD60 citations96
US6111333AAug 29, 2000
Magnetic bearing, rotating machine mounting the same, and method for driving rotating machine
HITACHI LTD88 citations96
US6039535AMar 21, 2000
Labyrinth sealing device, and fluid machine providing the same
HITACHI LTD59 citations96
US5228832AJul 20, 1993
Mixed flow compressor
HITACHI LTD68 citations96
US5709531AJan 20, 1998
Centrifugal compressor and vaned diffuser
HITACHI LTD46 citations95
US5516263AMay 14, 1996
Centrifugal compressor and vaned diffuser
HITACHI LTD50 citations95
US5312226AMay 17, 1994
Turbo compressor and method of controlling the same
HITACHI LTD30 citations93
US6692224B2Feb 17, 2004
Turbo compressor
HITACHI LTD20 citations92
US6679689B2Jan 20, 2004
Screw compressor
HITACHI LTD27 citations92
US6572350B2Jun 3, 2003
Screw compressor
HITACHI LTD19 citations92
US6441523B1Aug 27, 2002
Very high permanent magnet type electric rotating machine system
HITACHI LTD24 citations92
US6435822B1Aug 20, 2002
Labyrinth sealing device, and fluid machine providing the same
HITACHI LTD22 citations92
US6376958B1Apr 23, 2002
Permanent magnet type synchronous motor and air compressor
HITACHI LTD25 citations92
US6369478B1Apr 9, 2002
Permanent-magnet-type electric rotating machine and air compressor and generator using the same
HITACHI LTD24 citations92
US5062766ANov 5, 1991
Turbo compressor
HITACHI LTD31 citations92
US4938661AJul 3, 1990
Multistage centrifugal compressor
HITACHI LTD54 citations92
US4725196AFeb 16, 1988
Single-shaft multi-stage centrifugal compressor
HITACHI LTD41 citations92
US4618311AOct 21, 1986
Vane angle changing device for an axial fluid machine
HITACHI LTD28 citations92
US4432697AFeb 21, 1984
Rotor of axial-flow machine
HITACHI LTD46 citations92
US4453889AJun 12, 1984
Stacked rotor
HITACHI LTD27 citations86
US6302645B1Oct 16, 2001
Labyrinth sealing device, and fluid machine providing the same
HITACHI LTD14 citations82
US4887940ADec 19, 1989
Multistage fluid machine
HITACHI LTD23 citations74
US4770602ASep 13, 1988
Method of capacity controlling of multistage compressor and apparatus therefor
HITACHI LTD14 citations72
US9976552B2May 22, 2018
Performance prediction device and performance prediction method for compressor
HITACHI LTD0 citations40