Dong Zhang

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Hangzhou, Zhejiang, CN

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Patents Grantslast 30 patents

Information Patent Grant
Mid-infrared gas sensor based on tapered sub-wavelength grating slo...
- Patent number 12,078,592
- Issue date Sep 3, 2024
- Ningbo University
- Weiwei Chen
- G01 - MEASURING TESTING
Information Patent Grant
Method, device and system for controlling opening of A-B doors
- Patent number 10,186,101
- Issue date Jan 22, 2019
- Hangzhou Hikvision Digital Technology Co., Ltd.
- Dong Zhang
- G07 - CHECKING-DEVICES

Patents Applicationslast 30 patents

Information Patent Application
MID-INFRARED GAS SENSOR BASED ON TAPERED SUB-WAVELENGTH GRATING SLO...
- Publication number 20230393060
- Publication date Dec 7, 2023
- Ningbo University
- Weiwei CHEN
- G01 - MEASURING TESTING
Information Patent Application
Method, Device and System for Controlling Opening of A-B Doors
- Publication number 20180374293
- Publication date Dec 27, 2018
- HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD.
- Dong Zhang
- G07 - CHECKING-DEVICES