Zhiguo YU

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Qingdao, Shandong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Detection method and system for pantograph arc based on train power...
- Patent number 10,416,222
- Issue date Sep 17, 2019
- CRRC QINGDAO SIFANG CO., LTD.
- Buchao Jia
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
DETECTION METHOD AND SYSTEM FOR PANTOGRAPH ARC BASED ON TRAIN POWER...
- Publication number 20170276716
- Publication date Sep 28, 2017
- CRRC QINGDAO SIFANG CO., LTD.
- Buchao JIA
- G01 - MEASURING TESTING