Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9673728 | Converter arrangement with a capacitance | Veikko HAKALA | 2017-06-06 |
| 9385590 | Arrangement and method for a vehicle inverter drive | Pertti Seväkivi | 2016-07-05 |
| 9045055 | Preventing of slip in an electrically powered vehicle | — | 2015-06-02 |
| 8471661 | Method for manufacturing coil, and a coil | Pertti Seväkivi | 2013-06-25 |
| 7968914 | Multi-component electrical module | Matti Laitinen, Jukka Sikanen, Christoph Haederli | 2011-06-28 |
| 7944087 | Method and apparatus for stabilizing voltage of intermediate circuit of frequency converter | — | 2011-05-17 |
| 7741796 | Method for controlling brake chopper, brake chopper and frequency converter | Simo Poyhonen, Mikko Hirvonen | 2010-06-22 |
| 7724503 | Frequency converter | — | 2010-05-25 |
| 7417408 | Method and arrangement for charging capacitors of direct-voltage intermediate circuit of frequency converter | Simo Poyhonen | 2008-08-26 |
| 7365622 | Switching device combination for capacitive loads connected to direct voltage | Risto Kajan, Erkki Rajala, Mikael N{dot over (a)}hls, Simo Poyhonen, Martti Varpela | 2008-04-29 |
| 7330095 | Cooled multiphase choke assembly | Simo Poyhonen, Sami Vartiainen | 2008-02-12 |
| 7245197 | Liquid-cooled choke | Juhani Helosvuori | 2007-07-17 |
| 7227325 | Method and arrangement for protecting a frequency converter | Simo Poyhonen | 2007-06-05 |
| 6985371 | Output choke arrangement for inverter, and method in conjunction therewith | Simo Poyhonen, Juha Mikkola, Teemu Ronkainen, Marko Raatikainen | 2006-01-10 |