Inventor
Tatsuaki Ambo
Inventor
Tokyo, JP
Overview
Patents· 15 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 systems33%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution21%
H02JElectric power networks18%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications8%
B23KSoldering or unsoldering5%
G01RMeasuring electric variables3%
H01LSemiconductor devices3%
H02HEmergency protective circuit arrangements3%
H02SGeneration of electric power by conversion of infrared radiation, visible light or ultraviolet light, e.g. using photovoltaic [pv] modules3%
H03KPulse technique3%
PatentTitleYear
11,018,495Control device for electric power conversion apparatus202110,666,160Power conversion device and method for operating same with reactive power compensation202010,536,001Photovoltaic system20209,985,553Control device of inverter20189,948,207Inverter control apparatus20189,863,992'Fault detecting apparatus and detecting method of the same'20189,762,143'Devices and methods for controlling current in inverters'20179,722,458'Power conversion device and method of controlling the same'20179,673,733'Control apparatus for photovoltaic inverter'20178,681,512'Active clamp resonance control'20146,898,093'Power conversion circuit with clamp and soft start'20055,965,038'Control equipment for resistance welding machine'19995,844,193'Control equipment for resistance welding machine'19984,860,186'PWM controller having synchronous and asynchronous mode'19894,646,222'Inverter provided with an overvoltage clamping circuit'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987Patents assigned to TOKYO SHIBAURA ELECTRIC CO (1)· patent assignee history
1987–2021Based in Tokyo, JP· patent location history
1989–1999Patents assigned to TOSHIBA KK (3)· patent assignee history
2005–2014Patents assigned to TOSHIBA INT CORP (2)· patent assignee history
2005Based in Houston, TX, US· patent location history
2014Patents assigned to AMBO TATSUAKI (1)· patent assignee history
2017–2021Patents assigned to TOSHIBA MITSUBISHI ELECTRIC INDUSTRIAL SYSTEMS CORP (8)· patent assignee history
2017–2020Based in Chuo-ku, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOSHIBA MITSUBISHI ELECTRIC INDUSTRIAL SYSTEMS CORP | 8 | 2017–2021 |
| TOSHIBA KK | 3 | 1989–1999 |
| TOSHIBA INT CORP | 2 | 2005–2014 |
| AMBO TATSUAKIself | 1 | 2014 |
| TOKYO SHIBAURA ELECTRIC CO | 1 | 1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 11 | 1987–2021 |
| Chuo-ku, JP | 3 | 2017–2020 |
| Houston, Texas, US | 1 | 2005 |