Sam-Kyu Chang

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Pohang, KR

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Patents Grantslast 30 patents

Information Patent Grant
Resin-coated steel for fuel tanks of automobile and method for manu...
- Patent number 6,797,372
- Issue date Sep 28, 2004
- Pohang Iron & Steel Co., Ltd.
- Jae-Ryung Lee
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Coating composition for forming insulating films, non-oriented elec...
- Patent number 6,667,105
- Issue date Dec 23, 2003
- Pohang Iron & Steel Co., Ltd.
- Young-Jong Yoo
- C21 - METALLURGY OF IRON
Information Patent Grant
Surface-treated steel sheet coated with chromate film for fuel tank...
- Patent number 6,565,671
- Issue date May 20, 2003
- Pohang Iron & Steel Co., Ltd.
- Jae-Ryung Lee
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Surface-treated steel sheet for fuel tanks and method of fabricatin...
- Patent number 6,387,538
- Issue date May 14, 2002
- Pohang Iron & Steel Co., Ltd.
- Jae-Ryung Lee
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method for manufacturing non-oriented electrical steel sheet showin...
- Patent number 5,803,988
- Issue date Sep 8, 1998
- Pohang Iron & Steel Co., Ltd.
- Byung Keun Bae
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
Resin-coated steel for fuel tanks of automobile and method for manu...
- Publication number 20030021984
- Publication date Jan 30, 2003
- Jae-Ryung Lee
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...