Inventor
Atsuyuki Hiruma
Inventor
Kariya, JP
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Rprimary
G01RMeasuring electric variables13%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters13%
H02HEmergency protective circuit arrangements10%
Y02TClimate change mitigation technologies related to transportation10%
B60LPropulsion of electrically-propelled vehicles8%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for5%
F02NStarting of combustion engines5%
F24FAir-conditioning5%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems5%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications5%
PatentTitleYear
10,837,417Engine starter apparatus20209,982,647Engine start system20189,948,220Rotation angle estimation apparatus for rotating electric machine20189,132,733'Insulation failure diagnosis apparatus and method of diagnosing insulation failure'20159,000,606'Power supply apparatus for vehicle'20158,963,479'Power conversion device for a rotary electric machine'20158,937,400'Power supply apparatus for vehicle'20158,285,445'System for performing communication between devices mounted in vehicle and communication module incorporated in the system'20126,153,993'Method and apparatus for controlling a brushless DC motor that indicates a motor failure'20005,936,854'Direct-current power supply system and air conditioner'19995,694,010'Method and apparatus for controlling a brushless DC motor'19975,446,354'Drive apparatus for brushless DC motor and failure diagnosing method for the same'19955,297,395'Air conditioner using rotary-type heat exchangers'19945,235,505'Overcurrent detector'19935,207,071'Current control apparatus for air-conditioning system'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–2000Patents assigned to TOSHIBA KK (7)· patent assignee history
1993–1995Based in Fuji, JP· patent location history
1997–2000Based in Shizuoka, JP· patent location history
1999Based in Fujinomiya, JP· patent location history
2012–2020Patents assigned to DENSO CORP (8)· patent assignee history
2012–2015Patents assigned to HIRUMA ATSUYUKI (5)· patent assignee history
2012–2020Based in Kariya, JP· patent location history
2015Patents assigned to FUJITA MITSURU (2)· patent assignee history
2015Patents assigned to ISHII JUN (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DENSO CORP | 8 | 2012–2020 |
| TOSHIBA KK | 7 | 1993–2000 |
| HIRUMA ATSUYUKIself | 5 | 2012–2015 |
| FUJITA MITSURU | 2 | 2015 |
| ISHII JUN | 2 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kariya, JP | 8 | 2012–2020 |
| Fuji, JP | 4 | 1993–1995 |
| Shizuoka, JP | 2 | 1997–2000 |
| Fujinomiya, JP | 1 | 1999 |