Inventor
HE CHUN
US28 patents
⚠️ This page may combine multiple inventors who share the name “HE CHUN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ALLIANCE FIBER OPTIC PROD INC
11 patentsUS7289733B1Oct 30, 2007
High reflection isolation optical devices and the method for making the same
ALLIANCE FIBER OPTIC PROD INC313 citations98
US7212343B1May 1, 2007
Compact wavelength multiplexer/demultiplexer and method for making the same
ALLIANCE FIBER OPTIC PROD INC35 citations92
US7013069B1Mar 14, 2006
Method and apparatus for separating channel signals
ALLIANCE FIBER OPTIC PROD INC22 citations92
US6931173B1Aug 16, 2005
MEMS optical switches with guaranteed switching status
ALLIANCE FIBER OPTIC PROD INC12 citations84
US6894846B1May 17, 2005
Optical add/drop apparatus and the method for making the same
ALLIANCE FIBER OPTIC PROD INC12 citations81
US7103246B1Sep 5, 2006
Cost-effective packaging of fiber optical devices
ALLIANCE FIBER OPTIC PROD INC8 citations72
US7412124B1Aug 12, 2008
Optical module with high reflection isolation and compact size
ALLIANCE FIBER OPTIC PROD INC6 citations62
US7262904B1Aug 28, 2007
Tunable optical add/drop device
ALLIANCE FIBER OPTIC PROD INC4 citations59
US7223026B1May 29, 2007
Solder-free packaging for integrated fiber optics device
ALLIANCE FIBER OPTIC PROD INC2 citations54
US7440156B1Oct 21, 2008
Integrated fiber optical attenuator with monotonic attenuation
ALLIANCE FIBER OPTIC PROD INC1 citations47
US6999656B1Feb 14, 2006
Optical device with concave mirror
ALLIANCE FIBER OPTIC PROD INC1 citations42
ELECTRIC POWER SCIENCE & RES INSTITUTE OF STATE GRID TIANJIN ELECTRIC POWER COMPANY
4 patentsUS12019044B2Jun 25, 2024
Defect detection method, apparatus, and device for semi-conducting bedding layer of power cable
ELECTRIC POWER SCIENCE & RES INSTITUTE OF STATE GRID TIANJIN ELECTRIC POWER COMPANY2 citations67
US12265066B2Apr 1, 2025
Imaging method and system for residual stress of basin insulator, and method for preparing test block
ELECTRIC POWER SCIENCE & RES INSTITUTE OF STATE GRID TIANJIN ELECTRIC POWER COMPANY0 citations46
US12385966B2Aug 12, 2025
Defect detection method and apparatus for cushion layer of cable, device, and storage medium
ELECTRIC POWER SCIENCE & RES INSTITUTE OF STATE GRID TIANJIN ELECTRIC POWER COMPANY0 citations45
US12304056B1May 20, 2025
Internal inspection robot
ELECTRIC POWER SCIENCE & RES INSTITUTE OF STATE GRID TIANJIN ELECTRIC POWER COMPANY0 citations41
ADVANCED OPTOWAVE CORP
4 patentsUS9748725B2Aug 29, 2017
Multipass fiber amplifiers
ADVANCED OPTOWAVE CORP1 citations48
US9728932B2Aug 8, 2017
Fiber coupled modular laser system
ADVANCED OPTOWAVE CORP0 citations48
US10175424B2Jan 8, 2019
Multiple channel fiber pigtailed acousto-optic device and the method of making the same
ADVANCED OPTOWAVE CORP0 citations38
US9531149B2Dec 27, 2016
Multipass fiber amplifiers
ADVANCED OPTOWAVE CORP0 citations38