Yanfen ZHOU

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Hangzhou, CN

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Patents Grantslast 30 patents

Information Patent Grant
Systems and methods for exposure control
- Patent number 11,194,227
- Issue date Dec 7, 2021
- ZHEJIANG DAHUA TECHNOLOGY CO., LTD
- Runfa Pan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Systems and methods for exposure control
- Patent number 10,721,409
- Issue date Jul 21, 2020
- ZHEJIANG DAHUA TECHNOLOGY CO., LTD
- Yanfen Zhou
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
SYSTEMS AND METHODS FOR EXPOSURE CONTROL
- Publication number 20200348580
- Publication date Nov 5, 2020
- Zhejiang Dahua Technology CO., LTD.
- Runfa PAN
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
SYSTEMS AND METHODS FOR EXPOSURE CONTROL
- Publication number 20190320107
- Publication date Oct 17, 2019
- Zhejiang Dahua Technology CO., LTD.
- Yanfen ZHOU
- H04 - ELECTRIC COMMUNICATION TECHNIQUE