Metal treatment – Process of modifying or maintaining internal physical... – Producing or treating layered – bonded – welded – or...
Reexamination Certificate
2007-08-16
2010-11-02
King, Roy (Department: 1793)
Metal treatment
Process of modifying or maintaining internal physical...
Producing or treating layered, bonded, welded, or...
C148S320000
Reexamination Certificate
active
07824509
ABSTRACT:
The present invention provides: a high-strength high-ductility hot-dip galvanized steel sheet and hot-dip galvannealed steel sheet having high fatigue resistance and corrosion resistance; a high-strength hot-dip galvanized steel sheet excellent in ductility, which improves non-plating defects and plating adhesion after severe deformation, and a method of producing the same; a high-strength and high-ductility hot-dip galvanized steel sheet having high fatigue resistance and corrosion resistance; a high-strength hot-dip galvanized steel sheet and hot-dip galvannealed steel sheet having superior appearance and workability, which suppresses the generation of non-plating defects, and a method of producing the same; and a high-strength hot-dip galvannealed steel sheet and a high-strength hot-dip galvanized steel sheet, which suppress non-plating defects and surface defects and have both corrosion resistance, in particular corrosion resistance in an environment containing chlorine ion, and high ductility, and a method of producing the same.
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Notice of Opposition dated Feb. 18, 2008 issued in EP patent 1 504 134 and English Translation thereof.
Bordignon, et al. “Dynamic Effects in Galvanising of High Strength Steels”, 5thInternational Conference on Zinc and Zinc Alloy Coated Steel Sheet, Galvatech 2001, Jun. 26-28, 2001, Brussels, Belgium, pp. 573-580.
Bordignon, “Hydrodynamic Effects on Galvanising of High Strength Steels”, ISIJ, Col. 41, 2001, No. 2m, pp. 168-174.
Azuma Masafumi
Fujita Nobuhiro
Kurosaki Masao
Miyasaka Akihiro
Morimoto Yasuhide
Kenyon & Kenyon LLP
King Roy
Nippon Steel Corporation
Yang Jie
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