Zhiyuan Chang

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Shenyang, Liaoning, CN

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Patents Grantslast 30 patents

Information Patent Grant
Hot stamped component, precoated steel sheet used for hot stamping...
- Patent number 11,667,988
- Issue date Jun 6, 2023
- Ironovation Materials Technology Co., Ltd.
- Hongliang Yi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Hot stamped component, precoated steel sheet used for hot stamping...
- Patent number 11,578,382
- Issue date Feb 14, 2023
- Ironovation Materials Technology Co., Ltd.
- Hongliang Yi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Steel material for hot stamping, hot stamping process and hot stamp...
- Patent number 11,377,703
- Issue date Jul 5, 2022
- Northeastern University
- Hongliang Yi
- C21 - METALLURGY OF IRON
Information Patent Grant
Hot stamped component, precoated steel sheet used for hot stamping...
- Patent number 11,248,276
- Issue date Feb 15, 2022
- Ironovation Materials Technology Co., Ltd.
- Hongliang Yi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
HOT STAMPED COMPONENT, PRECOATED STEEL SHEET USED FOR HOT STAMPING...
- Publication number 20220325370
- Publication date Oct 13, 2022
- IRONOVATION MATERIALS TECHNOLOGY CO., LTD.
- Hongliang YI
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
HOT STAMPED COMPONENT, PRECOATED STEEL SHEET USED FOR HOT STAMPING...
- Publication number 20220119911
- Publication date Apr 21, 2022
- IRONOVATION MATERIALS TECHNOLOGY CO., LTD.
- Hongliang YI
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
HOT STAMPED COMPONENT, PRECOATED STEEL SHEET USED FOR HOT STAMPING...
- Publication number 20200385836
- Publication date Dec 10, 2020
- IRONOVATION MATERIALS TECHNOLOGY CO., LTD.
- Hongliang YI
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Steel Material For Hot Stamp Forming, Hot Stamp Forming Process And...
- Publication number 20190309385
- Publication date Oct 10, 2019
- NORTHEASTERN UNIVERSITY
- Hongliang Yi
- C21 - METALLURGY OF IRON