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Congfeng Zhang
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Hangzhou, Zhejiang, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Hollow, liquid cooling and strip-shaped LED lamp
Patent number
8,454,185
Issue date
Jun 4, 2013
THINKLUX (Zhejiang) Lighting Technology Co., Ltd
Guichao Hua
F21 - LIGHTING
Information
Patent Grant
DC-DC flyback converter having a synchronous rectification self-dri...
Patent number
7,791,903
Issue date
Sep 7, 2010
Bel Power (Hangzhou) Co., Ltd.
Congfeng Zhang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
HOLLOW, LIQUID COOLING AND STRIP-SHAPED LED LAMP
Publication number
20110267805
Publication date
Nov 3, 2011
LED ONE (Hangzhou) CO., LTD.
Guichao Hua
F21 - LIGHTING
Information
Patent Application
DC-DC FLYBACK CONVERTER HAVING A SYNCHRONOUS RECTIFICATION SELF-DRI...
Publication number
20070121351
Publication date
May 31, 2007
BEL POWER (HANGZHOU) CO., LTD.
Congfeng Zhang
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...