Hongfei ZHAO

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Shijiazhuang, Hebei, CN

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Patents Applicationslast 30 patents

Information Patent Application
Growth Device and Method for Low-Stress Crystals
- Publication number 20230069057
- Publication date Mar 2, 2023
- THE 13TH RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION
- Yanlei SHI
- C30 - CRYSTAL GROWTH
Information Patent Application
METHOD FOR CUTTING SUBSTRATE WAFER FROM INDIUM PHOSPHIDE CRYSTAL BAR
- Publication number 20220072660
- Publication date Mar 10, 2022
- THE 13TH RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION
- Yanlei SHI
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR