Zhiqiang ZHANG

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Qingdao, Shandong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Voltage control method and apparatus, system, and maglev train
- Patent number 12,017,539
- Issue date Jun 25, 2024
- CRRC Qingdao Sifang Co., Ltd.
- Donghua Wu
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Device and method for testing flow field state within high-speed tr...
- Patent number 10,401,257
- Issue date Sep 3, 2019
- CRRC QINGDAO SIFANG CO., LTD.
- Yundong Han
- G01 - MEASURING TESTING
Information Patent Grant
Track vehicle collision testing device and track vehicle collision...
- Patent number 10,393,628
- Issue date Aug 27, 2019
- CRRC QINGDAO SIFANG CO., LTD.
- Zhixiang Liu
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
POSITIONING SYSTEM AND METHOD FOR MAGLEV TRAIN
- Publication number 20240416978
- Publication date Dec 19, 2024
- CRRC QINGDAO SIFANG CO., LTD.
- Xiankai LIU
- B60 - VEHICLES IN GENERAL
Information Patent Application
VOLTAGE CONTROL METHOD AND APPARATUS, SYSTEM, AND MAGLEV TRAIN
- Publication number 20230382235
- Publication date Nov 30, 2023
- CRRC QINGDAO SIFANG CO., LTD.
- Donghua WU
- B60 - VEHICLES IN GENERAL
Information Patent Application
METHOD AND SYSTEM FOR DETECTING HARMONIC CURRENT IN SYNCHRONOUS MOTORS
- Publication number 20210223295
- Publication date Jul 22, 2021
- Tongji University
- Jinsong KANG
- G01 - MEASURING TESTING
Information Patent Application
DEVICE AND METHOD FOR TESTING FLOW FIELD STATE WITHIN HIGH-SPEED TR...
- Publication number 20170234763
- Publication date Aug 17, 2017
- CRRC QINGDAO SIFANG CO., LTD.
- Yundong HAN
- G01 - MEASURING TESTING
Information Patent Application
TRACK VEHICLE COLLISION TESTING DEVICE AND TRACK VEHICLE COLLISION...
- Publication number 20170184473
- Publication date Jun 29, 2017
- CRRC QINGDAO SIFANG CO., LTD.
- Zhixiang LIU
- G01 - MEASURING TESTING