Inventor
Liu li-kun
CN8 patents
⚠️ This page may combine multiple inventors who share the name “Liu li-kun”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HONGQISHENG PREC ELECTRONICS QINHUANGDAO CO LTD
6 patentsUS10349533B1Jul 9, 2019
Multilayer circuit board and method of manufacturing the same
HONGQISHENG PREC ELECTRONICS QINHUANGDAO CO LTD4 citations70
US11582859B2Feb 14, 2023
Method for manufacturing flexible circuit board
HONGQISHENG PREC ELECTRONICS QINHUANGDAO CO LTD0 citations57
US11140769B1Oct 5, 2021
Flexible circuit board and method for manufacturing the same
HONGQISHENG PREC ELECTRONICS QINHUANGDAO CO LTD1 citations57
US10660218B2May 19, 2020
Method of manufacturing multilayer circuit board
HONGQISHENG PREC ELECTRONICS QINHUANGDAO CO LTD0 citations51
US10653015B2May 12, 2020
Multilayer circuit board and method of manufacturing the same
HONGQISHENG PREC ELECTRONICS QINHUANGDAO CO LTD0 citations51
US11985764B2May 14, 2024
Circuit board and method for manufacturing the same
HONGQISHENG PREC ELECTRONICS QINHUANGDAO CO LTD0 citations50