Nidec SR Drives Ltd owns a world-leading portfolio of intellectual
property relating to switched reluctance systems.
The patent portfolio
covers a wide range of topics in the technology, including: the
design, manufacture and operation of switched reluctance machines;
circuits for associated power converters; control techniques
for controlling the machines and power converters; methods of
rotor position detection using both hardware detectors and software
Currently there are over 500 cases
granted, with applications filed for a potential further 650
grants. The portfolio covers 17 countries in all
The trademark portfolio includes the following
marks registered in Great Britain, the United States and/or as
European Community trademarks.