Inventor
Yosuke Nakazawa
Inventor
Tokyo, JP
Overview
Patents· 33 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Mprimary
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 systems20%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters16%
B60LPropulsion of electrically-propelled vehicles13%
Y02TClimate change mitigation technologies related to transportation13%
H02KDynamo-electric machines6%
H02JElectric power networks4%
B61CLocomotives3%
G05FSystems for regulating electric or magnetic variables3%
H01LSemiconductor devices3%
H03KPulse technique3%
PatentTitleYear
10,075,092Neutral point power converter with first and second chopper cell groups201810,027,242Vehicle power conversion device20189,722,507'Electric power conversion apparatus'20179,673,715'Switching element driving power supply circuit'20179,643,496'Power conversion apparatus for vehicle and vehicle'20179,616,770'Electric vehicle drive apparatus, method of driving an electric vehicle, and program'20179,450,509'Power conversion apparatus'20169,423,470'Magnetic polarity determination device, permanent magnet synchronous motor control device, and magnetic polarity determination method'20169,379,548'Multilevel reactive power compensator'20169,369,065'Power conversion device'20169,287,797'Electric power converting device and electric power converting method'20168,896,365'Semiconductor switch having reverse voltage application circuit and power supply device including the same'20148,890,455'Electric vehicle control device'20148,847,521'Electric-vehicle control apparatus'20148,836,161'Rolling stock system and control method thereof'20148,599,585'Power conversion device'20138,531,855'Power conversion apparatus'20138,519,649'Control device of a synchronous motor'20137,965,003'Motor drive system for railway vehicle'20117,904,216'Electric train control apparatus'20117,084,603'Motor control device'20067,057,361'Inverter control device and electric vehicle thereof'20066,828,750'Method of controlling a motor and device therefor'20046,707,266'Motor control device'20046,580,247'Motor control device'20036,552,462'Reluctance type rotating machine with permanent magnets'20036,431,297'Apparatus for driving electric car by inverter-controlled motor through gear mechanism'20026,429,620'Motor control device'20026,342,745'Reluctance type rotating machine with permanent magnets'20026,274,960'Reluctance type rotating machine with permanent magnets'20016,107,776'Inverter control device'20005,959,430'Power conversion system'19995,854,547'Control system for permanent magnet synchronous motor'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998–2018Patents assigned to TOSHIBA KK (31)· patent assignee history
1998–2016Based in Tokyo, JP· patent location history
2002Based in Fuchu, JP· patent location history
2011–2018Based in Kunitachi, JP· patent location history
2013–2014Patents assigned to NAKAZAWA YOSUKE (7)· patent assignee history
2013–2014Patents assigned to TODA SHINICHI (3)· patent assignee history
2013–2014Patents assigned to YASUOKA IKUO (3)· patent assignee history
2013Patents assigned to TOSHIBA CORP (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOSHIBA KK | 31 | 1998–2018 |
| NAKAZAWA YOSUKEself | 7 | 2013–2014 |
| TODA SHINICHI | 3 | 2013–2014 |
| YASUOKA IKUO | 3 | 2013–2014 |
| TOSHIBA CORP | 2 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 20 | 1998–2016 |
| Kunitachi, JP | 12 | 2011–2018 |
| Fuchu, JP | 1 | 2002 |