Chun Kei Yu

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Hong Kong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Electric motor with heat dissipation structure
- Patent number 8,593,022
- Issue date Nov 26, 2013
- Johnson Electric S.A.
- James Ching Sik Lau
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electric motor
- Patent number 8,471,430
- Issue date Jun 25, 2013
- Johnson Electric S.A.
- James Ching Sik Lau
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Hydraulic power device
- Patent number 8,118,569
- Issue date Feb 21, 2012
- Chun Kwan Yu
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...

Patents Applicationslast 30 patents

Information Patent Application
ELECTRIC MOTOR AND ELECTRIC PUMP
- Publication number 20160341202
- Publication date Nov 24, 2016
- JOHNSON ELECTRIC S.A.
- Jie CHAI
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
ELECTRIC MOTOR
- Publication number 20110156526
- Publication date Jun 30, 2011
- James Ching Sik LAU
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ELECTRIC MOTOR
- Publication number 20110156511
- Publication date Jun 30, 2011
- James Ching Sik LAU
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER OUTPUT DEVICE AND POWER ENHANCEMENT MEMBER
- Publication number 20100181878
- Publication date Jul 22, 2010
- CHUN KWAN YU
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
HYDRAULIC POWER DEVICE
- Publication number 20100180588
- Publication date Jul 22, 2010
- CHUN KWAN YU
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...