Inventor
Sadao Ishii
Inventor
Kitakyushu, JP
Overview
Patents· 5 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 systems45%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications18%
G01RMeasuring electric variables9%
H02HEmergency protective circuit arrangements9%
H02JElectric power networks9%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters9%
PatentTitleYear
10,516,330Power converting device for controlling current based on oscillation component of voltage amplitude, and current control method based on oscillation component of voltage amplitude201910,243,476Power conversion device and power conversion method20199,985,545DC-to-DC converter, power converter, power generation system, and method for DC-to-DC conversion20189,712,079'Electric power converter and control method for electric power converter'20176,351,397'Protection apparatus and protection method of PWM cycloconverter'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002Patents assigned to YASKAWA DENKI SEISAKUSHO KK (1)· patent assignee history
2002–2017Based in Fukuoka, JP· patent location history
2017–2019Patents assigned to YASKAWA ELECTRIC CORP (4)· patent assignee history
2018–2019Based in Kitakyushu, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| YASKAWA ELECTRIC CORP | 4 | 2017–2019 |
| YASKAWA DENKI SEISAKUSHO KK | 1 | 2002 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kitakyushu, JP | 3 | 2018–2019 |
| Fukuoka, JP | 2 | 2002–2017 |