Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7583136 | Active filter for reduction of common mode current | — | 2009-09-01 |
| 7385438 | Active filter for reduction of common mode current | — | 2008-06-10 |
| 7187229 | Active filter for reduction of common mode current | — | 2007-03-06 |
| 6842069 | Active common mode EMI filters | Toshio Takahashi | 2005-01-11 |
| 6839250 | Active EMI filter with feed forward cancellation | Toshio Takahashi, Jun Honda | 2005-01-04 |
| 6794929 | Active filter for reduction of common mode current | — | 2004-09-21 |
| 6788558 | Passive common mode filter and method for operating a passive common mode filter | — | 2004-09-07 |
| 6781444 | Active common mode EMI filter, including series cascaded filter with reduced power dissipation and transistor voltage rating | — | 2004-08-24 |
| 6690230 | Active common mode filter connected in A-C line | — | 2004-02-10 |
| 6636107 | Active filter for reduction of common mode current | — | 2003-10-21 |
| 6429639 | Combined filter inductor and hall current sensor | — | 2002-08-06 |
| 6404045 | IGBT and free-wheeling diode combination | — | 2002-06-11 |
| 6396333 | Circuit for synchronous rectification with minimal reverse recovery losses | Ajit Dubhashi | 2002-05-28 |
| 6211567 | Top heatsink for IGBT | — | 2001-04-03 |
| 6104149 | Circuit and method for improving short-circuit capability of IGBTs | — | 2000-08-15 |
| 6060792 | Instantaneous junction temperature detection | — | 2000-05-09 |
| 6038155 | Three phase SCR rectifier bridge with soft start control IC | — | 2000-03-14 |
| 6009008 | Soft strat bridge rectifier circuit | — | 1999-12-28 |
| 5998227 | IGBT and free-wheeling diode combination | — | 1999-12-07 |
| 5982136 | Circuit for sensing current in power trains for motor control | — | 1999-11-09 |
| 5923513 | Active snubber device for power modules | — | 1999-07-13 |
| 5856904 | Voltage and current based control and triggering for isolator surge protector | Henry N. Tachick | 1999-01-05 |
| 5818214 | Buck regulator circuit | Yi Zhang | 1998-10-06 |
| 5815391 | Current sensing circuit for pulse width modulated motor drive | — | 1998-09-29 |
| 5804873 | Heatsink for surface mount device for circuit board mounting | — | 1998-09-08 |