IPC Subgroup
H02K 37/14 with magnets rotating within the armatures
Introduced: January 1985
Last revised: January 2006
Full Title
Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors > of permanent magnet type > with stationary armatures and rotating magnets > with magnets rotating within the armatures
Classification Context
- Section:
- ELECTRICITY
- Class:
- GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
- Subclass:
- DYNAMO-ELECTRIC MACHINES
2 direct subcodes
Child Classifications
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- H02K 37/16 having horseshoe armature cores
- H02K 37/18 of homopolar type
Top Applicants
Top 10 applicants by patent filingsfor class H02, 2013–2023, worldwide · Source: EPO PATSTAT
- SGCC(STATE GRID CORPORATION OF CHINA) 54,496
- MITSUBISHI ELECTRIC CORPORATION JP 10,495
- TOYOTA MOTOR CORPORATION 9,464
- GUANGDONG POWER GRID CORPORATION 9,339
- ROBERT BOSCH DE 8,226
- SIEMENS DE 8,218
- DENSO CORPORATION 7,063
- MITSUBISHI ELECTRIC CORPORATION 6,619
- SAMSUNG ELECTRONICS COMPANY KR 5,826
- GREE ELECTRIC APPLIANCES 5,094