Inventor
JIAO JINGHAI
CN7 patents
Patents
7 patentsUS10416222B2Sep 17, 2019
Detection method and system for pantograph arc based on train power supply system
CRRC QINGDAO SIFANG CO LTD2 citations61
US10411503B2Sep 10, 2019
Motor train unit auxiliary power supply apparatus
CRRC QINGDAO SIFANG CO LTD1 citations55
US9682714B2Jun 20, 2017
Switching circuit for implementing coupling at random end of train
CRRC QINGDAO SIFANG CO LTD1 citations50
US11125006B2Sep 21, 2021
Method, system and device for controlling door of railway vehicle
CRRC QINGDAO SIFANG CO LTD0 citations47
US9806506B2Oct 31, 2017
High voltage equipment box for railway vehicle
CRRC QINGDAO SIFANG CO LTD0 citations43
US10051739B2Aug 14, 2018
Control relay board for railway vehicle
CRRC QINGDAO SIFANG CO LTD0 citations34
US10192694B2Jan 29, 2019
Interlocking control device of multiple-unit train safety circuit
CRRC QINGDAO SIFANG CO LTD0 citations31