Wanlei DAI

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Full-laser scribing method for flexible stainless steel substrate s...
- Patent number 10,784,389
- Issue date Sep 22, 2020
- BEIJING SIFANG CRENERGEY OPTOELECTRONICS TECHNOLOGY CO., LTD.
- Ning Zhang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Full-laser scribing method for large-area copper indium gallium sel...
- Patent number 10,418,508
- Issue date Sep 17, 2019
- Beijing Sifang Automation Co., Ltd.
- Ning Zhang
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
FULL-LASER SCRIBING METHOD FOR FLEXIBLE STAINLESS STEEL SUBSTRATE S...
- Publication number 20190237600
- Publication date Aug 1, 2019
- BEIJING SIFANG CRENERGEY OPTOELECTRONICS TECHNOLOGY CO., LTD.
- Ning Zhang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FULL-LASER SCRIBING METHOD FOR LARGE-AREA COPPER INDIUM GALLIUM SEL...
- Publication number 20180114876
- Publication date Apr 26, 2018
- BEIJING SIFANG AUTOMATION CO., LTD.
- Ning ZHANG
- H01 - BASIC ELECTRIC ELEMENTS