Issued Patents All Time
Showing 25 most recent of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12187576 | Drive system and method for controlling a drive system | Mikko Paakkinen, Tuukka Kauppinen | 2025-01-07 |
| 12030743 | Elevator brake release monitoring | Ari Kattainen | 2024-07-09 |
| 11993479 | Method for reducing thermal stress of a power semiconductor switch, an electrical converter unit and an elevator | Mikko Paakkinen, Tuukka Kauppinen | 2024-05-28 |
| 11293951 | Elevator brake release monitoring | Ari Kattainen | 2022-04-05 |
| 11218097 | Method for determining rotor position of electric motor, elevator and electrical converter unit | Tuukka Kauppinen, Mikko Paakkinen | 2022-01-04 |
| 10972015 | Method of initiating a regenerative converter and a regenerative converter | Juhamatti Nikander | 2021-04-06 |
| 10954101 | Elevator brake release monitoring | Ari Kattainen | 2021-03-23 |
| 10934133 | Elevator safety arrangement having earth fault detection | Ari Kattainen, Juha-Matti Aitamurto | 2021-03-02 |
| 10196234 | Method for controlling unintended vertical speed and acceleration of an elevator | Ari Kattainen | 2019-02-05 |
| 10196237 | Method for performing an emergency stop using a declaration profile of an electric motor | Ari Kattainen, Antti Hovi, Petteri Kangas | 2019-02-05 |
| 10189675 | Fully adjustable brake controller without need of DC-link | Henri Wenlin, Tuukka Korhonen, Ari Pikivirta, Arto Nakari | 2019-01-29 |
| 10179718 | Elevator car overload monitoring to prevent starting | Risto Jokinen | 2019-01-15 |
| 10087045 | System, machinery brake and method for controlling the machinery brake | Tuukka Korhonen | 2018-10-02 |
| 10029883 | Method for controlling an elevator | Matti Rasanen, Mika Alvesalo | 2018-07-24 |
| 9912265 | Method for controlling an alternating current electric machine, and a frequency converter | — | 2018-03-06 |
| 9884742 | Elevator safety arrangement having earth fault detection | Ari Kattainen, Juha-Matti Aitamurto | 2018-02-06 |
| 9873591 | Brake controller, elevator system and a method for performing an emergency stop with an elevator hoisting machine driven with a frequency converter | Ari Kattainen, Pasi Raassina, Tapio Saarikoski, Arto Nakari, Antti Kallioniemi | 2018-01-23 |
| 9868615 | Method and system for detecting a stall condition in an elevator | Jari Helvilä, Sakari Korvenranta, Petter MARTONEN, Petteri Valjus, Jukka LAITINEN | 2018-01-16 |
| 9802790 | Drive device of an elevator with safety system | Ari Kattainen, Pasi Raassina, Tapio Saarikoski, Arto Nakari, Antti Kallioniemi | 2017-10-31 |
| 9776829 | Elevator safety arrangement with drive prevention logic | Ari Kattainen, Pasi Raassina, Tapio Saarikoski, Arto Nakari, Antti Kallioniemi | 2017-10-03 |
| 9771242 | Inspection tests for an elevator without additional test weights | Ari Kattainen | 2017-09-26 |
| 9758342 | Determination of the movement of a synchronous machine | Tuukka Kauppinen | 2017-09-12 |
| 9731935 | Method and apparatus for controlling an electric motor of an elevator without an encoder | — | 2017-08-15 |
| 9663323 | Method and an elevator for stopping an elevator car using elevator drive | Ari Kattainen | 2017-05-30 |
| 8896259 | Determination of the position of the rotor of an electric machine | Tuukka Kauppinen | 2014-11-25 |