Ningfang Song

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Anti-torsion solid-core polarization-maintaining photonic crystal f...
- Patent number 11,598,915
- Issue date Mar 7, 2023
- Beihang University
- Chunxi Zhang
- G02 - OPTICS
Information Patent Grant
Hollow-core antiresonant fiber with nested supporting rings and its...
- Patent number 10,859,763
- Issue date Dec 8, 2020
- Beihang University
- Xiaobin Xu
- G02 - OPTICS
Information Patent Grant
Method and apparatus for nondestructive determination of core size...
- Patent number 10,704,986
- Issue date Jul 7, 2020
- Beihang University
- Xiaobin Xu
- G02 - OPTICS
Information Patent Grant
Kind of low magnetic sensitivity PM-PCF based on mechanical buffer
- Patent number 9,915,779
- Issue date Mar 13, 2018
- Beihang University
- Jingming Song
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
ANTI-TORSION SOLID-CORE POLARIZATION-MAINTAINING PHOTONIC CRYSTAL F...
- Publication number 20220057569
- Publication date Feb 24, 2022
- BEIHANG UNIVERSITY
- Chunxi Zhang
- G02 - OPTICS
Information Patent Application
HOLLOW-CORE ANTIRESONANT FIBER WITH NESTED SUPPORTING RINGS AND ITS...
- Publication number 20200257041
- Publication date Aug 13, 2020
- BEIHANG UNIVERSITY
- Xiaobin Xu
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
METHOD AND APPARATUS FOR NONDESTRUCTIVE DETERMINATION OF CORE SIZE...
- Publication number 20190316988
- Publication date Oct 17, 2019
- BEIHANG UNIVERSITY
- Xiaobin Xu
- G01 - MEASURING TESTING
Information Patent Application
KIND OF LOW MAGNETIC SENSITIVITY PM-PCF BASED ON MECHANICAL BUFFER
- Publication number 20180003889
- Publication date Jan 4, 2018
- BEIHANG UNIVERSITY
- Jingming Song
- G02 - OPTICS