HITACHI POWER SEMICONDUCTOR DEVICE, LTD.
43Patents
42Active
43Granted
52Portfolio score
Filing activity: Oct 27, 2011 → Jul 27, 2022
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9000601B2 | Power semiconductor module | Electricity | 8 | Active |
| US9013877B2 | Power semiconductor device | Electricity | 7 | Active |
| US10079536B2 | Rectifier, alternator using same and power supply using same | Emerging Cross-Sectional Technologies | 4 | Active |
| US9082814B2 | Semiconductor devices and power conversion systems | Electricity | 4 | Active |
| US9478605B2 | Semiconductor device with similar impurity concentration JTE regions | Electricity | 3 | Active |
| US9831145B2 | Semiconductor device, and alternator and power converter using the semiconductor device | Electricity | 3 | Active |
| US11282937B2 | Semiconductor device and power conversion device | Electricity | 2 | Active |
| US10304761B2 | Semiconductor device and alternator using same | Electricity | 2 | Active |
| US11942512B2 | Semiconductor device and power conversion device | Electricity | 2 | Active |
| US9531368B2 | Semiconductor switch circuit, signal processing apparatus, and ultrasound diagnostic apparatus | Electricity | 2 | Active |
| US9966871B2 | Rectification device, alternator, and power conversion device | Emerging Cross-Sectional Technologies | 2 | Active |
| US10529813B2 | Semiconductor device, power module, and power conversion device | Electricity | 2 | Active |
| US9076774B2 | Semiconductor device and a method of manufacturing same | Electricity | 1 | Active |
| US11012022B2 | Inverter device and electric motor device using same | Electricity | 1 | Active |
| US10069436B2 | Synchronous rectifier and alternator using the same | Emerging Cross-Sectional Technologies | 1 | Active |
| US10374414B2 | Semiconductor power module and power conversion apparatus using the same | Electricity | 1 | Active |
| US10916643B2 | Semiconductor device, method for controlling semiconductor device, and control circuit for semiconductor device | Electricity | 1 | Active |
| US11296212B2 | Semiconductor device and power conversion device | Electricity | 1 | Active |
| US11843036B2 | Semiconductor device and termination structure | General | 0 | Revoked |
| US11955878B2 | Upper arm drive circuit, drive circuit of power conversion device, and power conversion device | Electricity | 0 | Active |
| US11881514B2 | Semiconductor device and termination structure | Electricity | 0 | Active |
| US10888941B2 | Power semiconductor module | Electricity | 0 | Active |
| US12300716B2 | Semiconductor device and power conversion device | Electricity | 0 | Active |
| US9190992B2 | Semiconductor device and ultrasonic diagnostic apparatus using the same | Human Necessities | 0 | Active |
| US10971415B2 | Semiconductor device, manufacturing method for semiconductor device, semiconductor module, and power conversion device | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.