Inventor
Roberto ALVES
Inventor
SE
Overview
Patents· 6 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 systems22%
H02JElectric power networks17%
H01FMagnets11%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters11%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution11%
G05FSystems for regulating electric or magnetic variables6%
G06FElectric digital data processing6%
H01HElectric switches6%
H02HEmergency protective circuit arrangements6%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications6%
PatentTitleYear
12,573,847Energy storage system for a direct current transmission system and a method for exchanging energy with a direct current transmission system202612,316,235Transformer arrangement and method for voltage conversion including a transformer and a converter coupling202512,113,449Transformer arrangement202412,081,020Control method, computer program product, control system and use202411,757,368Transformer arrangement202311,694,840Transformer arrangement2023Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2023Patents assigned to HITACHI ENERGY SWITZERLAND AG (2)· patent assignee history
2023–2026Based in SE· patent location history
2024–2026Patents assigned to HITACHI ENERGY LTD (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI ENERGY LTD | 4 | 2024–2026 |
| HITACHI ENERGY SWITZERLAND AG | 2 | 2023 |
Locations
| Location | Patents | Span |
|---|---|---|
| SE | 6 | 2023–2026 |