Inventor
Masashige Tsuji
Inventor
Hitachinaka, JP
Overview
Patents· 14 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 systems24%
Y02TClimate change mitigation technologies related to transportation18%
B60LPropulsion of electrically-propelled vehicles13%
H05KPrinted circuits9%
H01HElectric switches7%
H02JElectric power networks7%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters7%
B60KArrangement or mounting of propulsion units or of transmissions in vehicles4%
H03KPulse technique4%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for2%
PatentTitleYear
9,960,710Automotive vehicle inverter control apparatus20189,742,304'Driver board and power converter'20179,209,737'Power converter'20158,970,155'Power inverter'20158,791,681'Electric power conversion system'20148,686,694'Discharge circuit for smoothing capacitor of DC power supply'20148,456,866'Power supply circuit and power conversion device'20138,436,590'Discharge circuit for smoothing capacitor of DC power supply'20138,228,700'Power conversion device'20128,040,088'Power inverter'20117,561,448'Power inverter'20096,529,009'Vacuum switch including vacuum-measurement devices, switchgear using the vacuum switch, and operation method thereof'20036,495,786'Vacuum exhaust element of vacuum switch'20026,426,627'Vacuum switch including vacuum-measurement devices, switchgear using the vacuum switch, and operation method thereof'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002–2011Patents assigned to HITACHI LTD (5)· patent assignee history
2002–2003Based in Narashino, JP· patent location history
2009–2018Based in Hitachinaka, JP· patent location history
2012–2018Patents assigned to HITACHI AUTOMOTIVE SYSTEMS LTD (9)· patent assignee history
2012–2018Patents assigned to TSUJI MASASHIGE (7)· patent assignee history
2013–2018Patents assigned to FUNABA SEIJI (6)· patent assignee history
2013–2018Patents assigned to NOTO YASUO (6)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI AUTOMOTIVE SYSTEMS LTD | 9 | 2012–2018 |
| TSUJI MASASHIGEself | 7 | 2012–2018 |
| FUNABA SEIJI | 6 | 2013–2018 |
| NOTO YASUO | 6 | 2013–2018 |
| HITACHI LTD | 5 | 2002–2011 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hitachinaka, JP | 11 | 2009–2018 |
| Narashino, JP | 3 | 2002–2003 |