Inventor

CHEN LONGMIN

CN3 patents

⚠️ This page may combine multiple inventors who share the name “CHEN LONGMIN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

UNIV TSINGHUA

2 patents

US9879979B2Jan 30, 2018

Heterodyne grating interferometer displacement measurement system

UNIV TSINGHUA4 citations71

US9885556B2Feb 6, 2018

Dual-frequency grating interferometer displacement measurement system

UNIV TSINGHUA1 citations50

SHANGHAI MICROELECTRONICS EQUI

1 patent

US9766054B2Sep 19, 2017

Planar motor rotor displacement measuring device and its measuring method

SHANGHAI MICROELECTRONICS EQUI0 citations39