Hangkai Zhang

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Hangzhou, Zhejiang, CN

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Patents Grantslast 30 patents

Information Patent Grant
Optical axis adjusting mechanism and camera
- Patent number 10,623,650
- Issue date Apr 14, 2020
- Hangzhou Hikvision Digital Technology Co., Ltd.
- Jian He
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Optical Axis Adjusting Mechanism and Camera
- Publication number 20190068887
- Publication date Feb 28, 2019
- HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD.
- Jian He
- H04 - ELECTRIC COMMUNICATION TECHNIQUE