Kun Du

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Guangzhou, Guangdong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Solder preform
- Patent number 11,207,748
- Issue date Dec 28, 2021
- Hangwei Cai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Reducing dross method of lead-free solder
- Patent number 8,557,016
- Issue date Oct 15, 2013
- Guangzhou Solderwell Enterprise Co., Ltd.
- Kun Du
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
NANO SILVER PASTE AND PREPARATION METHOD THEREOF
- Publication number 20240009731
- Publication date Jan 11, 2024
- SOLDERWELL MICROELECTRONIC PACKAGING MATERIALS CO., LTD
- Hangwei CAI
- B22 - CASTING POWDER METALLURGY
Information Patent Application
SOLDER PREFORM
- Publication number 20210039206
- Publication date Feb 11, 2021
- Hangwei CAI
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
PROCESS FOR COATING PREFORM WITH FLUX
- Publication number 20160288269
- Publication date Oct 6, 2016
- GUANGZHOU SOLDERWELL ADVANCED MATERIALS CO., LTD.
- Jinye Zhao
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
HIGH-CONCENTRATION FLUX FOR BEING SPRAYED ON PREFORM
- Publication number 20160250722
- Publication date Sep 1, 2016
- GUANGZHOU SOLDERWELL ADVANCED MATERIALS CO., LTD.
- Kun Du
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
REDUCING DROSS METHOD OF LEAD-FREE SOLDER
- Publication number 20110219914
- Publication date Sep 15, 2011
- Kun Du
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR