Zhu Qing YI

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Shatin, HK

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Patents Grantslast 30 patents

Information Patent Grant
Control circuit for a DC motor
- Patent number 9,385,640
- Issue date Jul 5, 2016
- Johnson Electric S.A.
- Chi Ping Sun
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
CONTROL CIRCUIT FOR A DC MOTOR
- Publication number 20150145450
- Publication date May 28, 2015
- JOHNSON ELECTRIC S.A.
- Chi Ping SUN
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER