Inventor

Haruo Miura

Inventor

Ibaraki, JP

Overview

36→

Patents

1984–2018

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 36 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

F04Dprimary

F04DNon-positive-displacement pumps34%

F01DNon-positive displacement machines or engines, e.g. steam turbines11%

F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants9%

H02KDynamo-electric machines9%

F16CShafts7%

H02PControl or regulation of electric motors, electric generators or dynamo-electric converters7%

Y10TTechnical subjects covered by former us classification7%

F04BPositive-displacement machines for liquids5%

F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids4%

B60SServicing, cleaning, repairing, supporting, lifting, or manoeuvring of vehicles, not otherwise provided for2%

PatentTitleYear

9,976,552Performance prediction device and performance prediction method for compressor2018 9,004,857'Barrel-shaped centrifugal compressor'2015 8,960,009'Apparatus and method for measuring vibration characteristics'2015 8,631,961'End wall closure apparatus'2014 8,151,834'Hydrogen compressor system'2012 7,563,078'Reciprocating compressor'2009 7,210,895'Turbo compressor and method of operating the turbo compressor'2007 7,172,015'Heat exchanger for air compressor'2007 7,052,250'Reciprocating compressor'2006 6,692,224'Turbo compressor'2004 6,679,689'Screw compressor'2004 6,572,350'Screw compressor'2003 6,462,492'Position-sensorless controlling method of synchronous motor'2002 6,441,523'Very high permanent magnet type electric rotating machine system'2002 6,435,822'Labyrinth sealing device, and fluid machine providing the same'2002 6,396,229'Method of estimating a rotor position of synchronous motor, method of controlling synchronous motor with no position sensor and a controller of synchronous motor'2002 6,376,958'Permanent magnet type synchronous motor and air compressor'2002 6,369,478'Permanent-magnet-type electric rotating machine and air compressor and generator using the same'2002 6,302,645'Labyrinth sealing device, and fluid machine providing the same'2001 6,196,809'Two-stage centrifugal compressor'2001 6,111,333'Magnetic bearing, rotating machine mounting the same, and method for driving rotating machine'2000 6,047,461'Rotor for permanent magnet excited, high-speed electric rotary machine, manufacturing method of the same and electric rotary machine including the same'2000 6,039,535'Labyrinth sealing device, and fluid machine providing the same'2000 5,980,218'Multi-stage compressor having first and second passages for cooling a motor during load and non-load operation'1999 5,709,531'Centrifugal compressor and vaned diffuser'1998 5,516,263'Centrifugal compressor and vaned diffuser'1996 5,312,226'Turbo compressor and method of controlling the same'1994 5,228,832'Mixed flow compressor'1993 5,062,766'Turbo compressor'1991 4,938,661'Multistage centrifugal compressor'1990 4,887,940'Multistage fluid machine'1989 4,770,602'Method of capacity controlling of multistage compressor and apparatus therefor'1988 4,725,196'Single-shaft multi-stage centrifugal compressor'1988 4,618,311'Vane angle changing device for an axial fluid machine'1986 4,453,889'Stacked rotor'1984 4,432,697'Rotor of axial-flow machine'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–2018Patents assigned to HITACHI LTD (31)· patent assignee history

1984–2002Based in Ibaraki, JP· patent location history

2001–2007Based in Chiyoda-ku, JP· patent location history

2006–2007Patents assigned to HITACHI IND CO LTD (2)· patent assignee history

2006–2018Based in Tokyo, JP· patent location history

2007–2012Patents assigned to HITACHI PLANT TECHNOLOGIES LTD (3)· patent assignee history

2012–2015Patents assigned to MIURA HARUO (4)· patent assignee history

2012–2015Based in Kasumigaura, JP· patent location history

2014–2015Patents assigned to NARITA MITSUHIRO (2)· patent assignee history

2015Based in Tsuchiura, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	31	1984–2018
MIURA HARUOself	4	2012–2015
HITACHI PLANT TECHNOLOGIES LTD	3	2007–2012
HITACHI IND CO LTD	2	2006–2007
NARITA MITSUHIRO	2	2014–2015

Locations

Location	Patents	Span
Ibaraki, JP	18	1984–2002
Chiyoda-ku, JP	9	2001–2007
Tokyo, JP	4	2006–2018
Kasumigaura, JP	3	2012–2015
Tsuchiura, JP	1	2015