Inventor
Tomomichi Ito
Inventor
Hitachi, JP
Overview
Patents· 16 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y02Eprimary
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution16%
H02JElectric power networks12%
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 systems10%
H03KPulse technique9%
H02KDynamo-electric machines7%
Y02TClimate change mitigation technologies related to transportation7%
F01DNon-positive displacement machines or engines, e.g. steam turbines5%
F02CGas-turbine plants5%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters5%
B60LPropulsion of electrically-propelled vehicles3%
PatentTitleYear
10,756,571System and method for stabilizing power system202010,202,906Two-shaft gas turbine201910,193,383Dual-shaft gas turbine power generation system, and control device and control method for gas turbine system20199,680,368'Power converter installed between an electric power system and an energy storage device'20179,641,034'Rotary machine and drive system therefor'20179,520,757'Dual-shaft gas turbine power generation system, and control device and control method for gas turbine system'20169,484,793'Electrical rotating machine system or wind turbine system'20169,219,426'Switching element, power converter, direct current transmission system, current control device, method of controlling power converter, and method of controlling current in voltage source converter'20157,667,436'Energy storage type feeder voltage compensation apparatus and method of controlling feeder voltage'20107,643,317'Power converting device and method for controlling the same'20107,402,982'Energy storage type feeder voltage compensation apparatus and method of controlling feeder voltage'20086,809,561'Semiconductor power converting apparatus'20046,727,516'Semiconductor power conversion apparatus'20046,717,177'Semiconductor power conversion apparatus'20046,703,874'Gate driver for MOS control semiconductor devices'20046,490,182'Power conversion apparatus'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002–2020Patents assigned to HITACHI LTD (16)· patent assignee history
2002–2010Based in Hitachi, JP· patent location history
2015–2016Based in Hitachinaka, JP· patent location history
2016Patents assigned to HINO NORIAKI (1)· patent assignee history
2016Patents assigned to ITO TOMOMICHI (1)· patent assignee history
2016Patents assigned to KUSUMI NAOHIRO (1)· patent assignee history
2016Patents assigned to TAKAHASHI KAZUO (1)· patent assignee history
2016–2020Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 16 | 2002–2020 |
| HINO NORIAKI | 1 | 2016 |
| ITO TOMOMICHIself | 1 | 2016 |
| KUSUMI NAOHIRO | 1 | 2016 |
| TAKAHASHI KAZUO | 1 | 2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hitachi, JP | 8 | 2002–2010 |
| Tokyo, JP | 6 | 2016–2020 |
| Hitachinaka, JP | 2 | 2015–2016 |