JINWOONG TECHNOLOGY

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Hwaseong-shi, KR

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for manufacturing a metal plate for a duct, including mes...
- Patent number 8,959,976
- Issue date Feb 24, 2015
- Jinwoong Technology Co., Ltd.
- Kyu-seok Cha
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Manufacturing apparatus and method of spiral duct including elbow
- Patent number 8,915,109
- Issue date Dec 23, 2014
- Jinwoong Technology Co., Ltd.
- Kyu-seok Cha
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Apparatus and method for manufacturing spiral duct
- Patent number 7,730,754
- Issue date Jun 8, 2010
- Jinwoong Technology
- Kyu-Seok Cha
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

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Patents Applicationslast 30 patents

Information Patent Application
POCKET FLANGE FORMING DEVICE FOR DUCT
- Publication number 20230415214
- Publication date Dec 28, 2023
- JINWOONG TECHNOLOGY CO., LTD.
- Kyu-seok CHA
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
APPARATUS FOR MANUFACTURING A METAL PLATE FOR A DUCT, INCLUDING MES...
- Publication number 20120234065
- Publication date Sep 20, 2012
- JINWOONG TECHNOLOGY CO., LTD
- Kyu-seok Cha
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
MANUFACTURING APPARATUS AND METHOD OF SPIRAL DUCT INCLUDING ELBOW
- Publication number 20110072875
- Publication date Mar 31, 2011
- JINWOONG TECHNOLOGY CO., LTD.
- Kyu-seok Cha
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
JOINT JIG OF SPIRAL DUCT MANUFACTURING APPARATUS
- Publication number 20110072650
- Publication date Mar 31, 2011
- Jinwoong Technology Co., Ltd.
- Kyu-seok Cha
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Integrated spiral duct
- Publication number 20080216911
- Publication date Sep 11, 2008
- JINWOONG TECHNOLOGY
- Kyu-Seok Cha
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...