Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8412373 | Conveying system | Petteri Kangas | 2013-04-02 |
| 8384337 | Conveyor system | — | 2013-02-26 |
| 8217617 | Power supply appliance of a transport system | — | 2012-07-10 |
| 8207631 | Power control of a transport system | — | 2012-06-26 |
| 8183813 | Power supply arrangement | Antti Kallioniemi | 2012-05-22 |
| 8053931 | Power control of transport system | — | 2011-11-08 |
| 7960865 | Apparatus and method for controlling the motor power | — | 2011-06-14 |
| 7905330 | Door control safety arrangement for transportation system | — | 2011-03-15 |
| 7681694 | Energy storage system for elevators | Esko Aulanko, Timo Syrman, Sakari Korvenranta | 2010-03-23 |
| 7669698 | Method and system for determining position information of an elevator | — | 2010-03-02 |
| 7331426 | Elevator system using a supercapacitor as a backup power source | — | 2008-02-19 |
| 7314120 | Motor control for elevator using two control signals | — | 2008-01-01 |
| 7184286 | Bridge for driving a direct-current or alternating current load | Esa Putkinen | 2007-02-27 |
| 7176653 | Electric motor drive | — | 2007-02-13 |
| 7147084 | Elevator control using switched speed and position | — | 2006-12-12 |
| 7121385 | Method and apparatus for adjustment of the rotor angle of an elevator motor | Antti Kallioniemi | 2006-10-17 |
| 6898094 | DC/DC bridge control unit for controlling a direct-current load | Esa Putkinen | 2005-05-24 |
| 6697273 | Control unit for controlling a direct-current load | Esa Putkinen | 2004-02-24 |
| 6515444 | Method for controlling a current-regulated motor | Jyrki Laaksonheimo, Ekso Aulanko | 2003-02-04 |
| 6452357 | Method for controlling a permanent magnet synchronous motor | — | 2002-09-17 |
| 6285961 | Procedure for determining the parameters for an electric drive controlling a synchronous elevator motor with permanent magnets | Tapio Saarikoski | 2001-09-04 |