Inventor

Haruo Koharagi

Inventor

Hitachi, JP

Overview

35→

Patents

1984–2013

Patent span

Electricity

Primary field (CPC H)

Patents· 35 as inventor

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

H02Kprimary

H02KDynamo-electric machines39%

A47LDomestic washing or cleaning17%

H02PControl or regulation of electric motors, electric generators or dynamo-electric converters10%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications7%

F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids5%

F04BPositive-displacement machines for liquids3%

F25BRefrigeration machines, plants or systems3%

B22DCasting of metals2%

H01FMagnets2%

PatentTitleYear

8,358,040'Permanent magnet type electric rotating machine'2013 8,241,021'Displacement type compressor having a self-start synchronous motor and start load reducing means'2012 7,772,736'Permanent magnet synchronous motor, rotor of the same, and compressor using the same'2010 7,626,301'Electric rotating machine having permanent magnets and method of manufacturing teeth portions of the stator iron core'2009 7,531,934'Self-start synchronous motor with permanent magnets and at least one frictional agitation joint, method for manufacturing the same and compressor comprising the same'2009 7,501,734'Motor, compressor, and air conditioner'2009 7,453,181'Permanent magnet synchronous motor and compressor using the same'2008 7,442,017'Displacement type compressor having a self-start synchronous motor and start load reducing means'2008 6,917,133'Air conditioner having permanent magnet rotating electric machine'2005 6,838,798'Permanent magnet type rotating electric machine'2005 6,759,777'Permanent magnet type electric rotating machine'2004 6,759,776'Permanent magnet type electric rotating machine'2004 6,657,350'Permanent magnet type rotating electrical machine, and power generation system and drive system using it'2003 6,552,461'Permanent magnet type rotating electric machine'2003 6,525,442'Permanent magnet rotating electric machine'2003 6,462,451'Permanent magnet rotating electric machine'2002 6,441,525'Permanent magnet rotating electric machine'2002 6,441,523'Very high permanent magnet type electric rotating machine system'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 5,469,009'Turbine generator'1995 5,381,584'Vacuum cleaner'1995 5,294,872'Method and apparatus for operating vacuum cleaner'1994 5,243,732'Vacuum cleaner with fuzzy logic control'1993 RE034286'Method and apparatus for operating vacuum cleaner'1993 5,166,585'Motor control apparatus for an electric vacuum cleaner'1992 5,155,885'Vacuum cleaner and method for operating the same'1992 5,075,607'Method and apparatus for operating vacuum cleaner'1991 5,015,905'DC dynamoelectric machine with interpoles having magnetic flux bypassing members'1991 4,983,895'Method and apparatus for operating vacuum cleaner'1991 4,958,406'Method and apparatus for operating vacuum cleaner'1990 4,880,474'Method and apparatus for operating vacuum cleaner'1989 4,467,234'Armature of rotating machine with means to balance the mutual inductance of adjacent pairs of coils'1984 4,454,460'D.C. Rotary machine with interpole compensation'1984 4,451,752'Stator of D.C. rotary machine'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–2013Patents assigned to HITACHI LTD (27)· patent assignee history

1984–2013Based in Hitachi, JP· patent location history

1989–1994Based in Ibaraki, JP· patent location history

2002–2005Based in Taga-gun, JP· patent location history

2002–2005Based in Juo, JP· patent location history

2004–2008Based in Tokyo, JP· patent location history

2008–2012Patents assigned to HITACHI APPLIANCES INC (6)· patent assignee history

2012–2013Patents assigned to KOHARAGI HARUO (2)· patent assignee history

2012Patents assigned to FUJIMURA KAZUYUKI (1)· patent assignee history

2013Patents assigned to ENOMOTO YUJI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI LTD	27	1984–2013
HITACHI APPLIANCES INC	6	2008–2012
KOHARAGI HARUOself	2	2012–2013
ENOMOTO YUJI	1	2013
FUJIMURA KAZUYUKI	1	2012

Locations

Location	Patents	Span
Hitachi, JP	10	1984–2013
Ibaraki, JP	8	1989–1994
Taga-gun, JP	5	2002–2005
Juo, JP	5	2002–2005
Tokyo, JP	2	2004–2008