Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9653921 | Battery device and energy storage system including the same | Sehoon Hwang | 2017-05-16 |
| 9647590 | Apparatus for compensating phase error in inverter output voltage | Seungcheol Choi | 2017-05-09 |
| 9557360 | Apparatus for estimating capacitance of DC-link capacitor in inverter | — | 2017-01-31 |
| 9419541 | Multilevel inverter | — | 2016-08-16 |
| 9407188 | Sensorless vector control apparatus for induction motor | — | 2016-08-02 |
| 9401665 | Electric power conversion apparatus | Jung Ik Ha, Ho Joon Shin, Kwon Yub Hyung | 2016-07-26 |
| 9379658 | Apparatus for controlling induction motor | — | 2016-06-28 |
| 9337746 | Multilevel inverter | — | 2016-05-10 |
| 9331595 | Multi-level inverter | — | 2016-05-03 |
| 9270222 | Multi-level medium-voltage inverter | — | 2016-02-23 |
| 9225278 | Method for determining phase angle in phase shift transformer for medium voltage inverter | — | 2015-12-29 |
| 9219440 | Apparatus for estimating parameter in induction motor | — | 2015-12-22 |
| 9209734 | Apparatus for estimating parameter in induction motor | — | 2015-12-08 |
| 9154044 | Apparatus for estimating capacitance of DC-link capacitor in inverter | Seung-Cheol Choi | 2015-10-06 |
| 9054600 | Control apparatus for regenerative medium voltage inverter | Seungcheol Choi | 2015-06-09 |
| 9013129 | Regenerative inverter device and inverter device using power cell unit | Seung-Cheol Choi | 2015-04-21 |
| 8742705 | Apparatus for operating interior permanent magnet synchronous motor | — | 2014-06-03 |
| 8723461 | Apparatus for operating interior permanent magnet synchronous motor | — | 2014-05-13 |