Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9059125 | Battery heating circuits and methods with resonance components in series using voltage inversion | Yaochuan Han, Wei Feng, Qinyao Yang, Wenjin Xia, Shibin Ma | 2015-06-16 |
| 8994332 | Battery heating circuits and methods using voltage inversion based on predetermined conditions | Yaochuan Han, Wei Feng, Qinyao Yang, Wenjin Xia, Xianyin Li | 2015-03-31 |
| 8975872 | Battery heating circuits and methods with resonance components in series using voltage inversion based on predetermined conditions | Yaochuan Han, Wei Feng, Qinyao Yang, Wenjin Xia, Xianyin Li | 2015-03-10 |
| 8970172 | Battery heating circuits and methods with resonance components in series using voltage inversion and freewheeling circuit components | Yaochuan Han, Wei Feng, Qinyao Yang, Wenjin Xia, Xianyin Li | 2015-03-03 |
| 8947049 | Battery heating circuits and methods using voltage inversion and freewheeling circuit components | Yaochuan Han, Wei Feng, Qinyao Yang, Wenjin Xia, Xianyin Li | 2015-02-03 |
| 8941356 | Battery heating circuits and methods with resonance components in series using energy transfer | Yaochuan Han, Wei Feng, Qinyao Yang, Wenjin Xia, Shibin Ma | 2015-01-27 |
| 8941357 | Heating circuits and methods based on battery discharging and charging using resonance components in series and freewheeling circuit components | Yaochuan Han, Wei Feng, Qinyao Yang, Wenjin Xia, Shibin Ma | 2015-01-27 |
| 8941358 | Heating circuits and methods based on battery discharging and charging using resonance components in series and freewheeling circuit components | Yaochuan Han, Wei Feng, Qinyao Yang, Wenjin Xia, Shibin Ma | 2015-01-27 |
| 8841883 | Battery heating circuits and methods with resonance components in series using energy transfer and voltage inversion | Yaochuan Han, Wei Feng, Qinyao Yang, Wenjin Xia, Shibin Ma | 2014-09-23 |
| 8836277 | Battery heating circuits and methods using resonance components in series based on current limiting and voltage inversion with bi-directionality and common inductance | Yaochuan Han, Wei Feng, Qinyao Yang, Wenjin Xia, Shibin Ma | 2014-09-16 |
| 8836288 | Battery heating circuits and methods using transformers | Yaochuan Han, Wei Feng, Qinyao Yang, Wenjin Xia, Shibin Ma | 2014-09-16 |
| 8829856 | Circuits and methods for heating batteries in parallel using resonance components in series | Yaochuan Han, Wei Feng, Qinyao Yang, Wenjin Xia, Shibin Ma | 2014-09-09 |
| 8823317 | Circuits and methods for heating batteries in series using resonance components in series | Yaochuan Han, Wei Feng, Qinyao Yang, Wenjin Xia, Shibin Ma | 2014-09-02 |
| 8816634 | Battery heating circuits and methods using resonance components in series | Yaochuan Han, Wei Feng, Qinyao Yang, Wenjin Xia, Shibin Ma | 2014-08-26 |
| 8816647 | Battery heating circuits and methods using resonance components in series based on current limiting and voltage inversion with bi-directionality | Yaochuan Han, Wei Feng, Qinyao Yang, Wenjin Xia, Shibin Ma | 2014-08-26 |
| 8559725 | Method and apparatus for extracting raster images from portable electronic document | Cheng Du, Fumihiro Hasegawa, Koichi Inoue | 2013-10-15 |
| 8452097 | Apparatus and method for extracting circumscribed rectangles of characters in transplantable electronic document | Cheng Du, Fumihiro Hasegawa, Koichi Inoue | 2013-05-28 |