Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Reexamination Certificate
2007-07-03
2007-07-03
Lavilla, Michael E. (Department: 1775)
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
C428S653000, C428S687000
Reexamination Certificate
active
10507148
ABSTRACT:
The present invention provides a plated steel material, said plated steel material having a plated layer which contains Al of 4% or more in mass, excellent in surface smoothness even when a cooling rate is low. In the present invention: a plated layer which contains Al of 4% or more in mass and has an Al-type intermetallic compound in an Al phase or abutting on an Al phase is formed on the surface of a steel material; in particular, high corrosion-resistance is secured in various environments by using a plated layer containing Al of 4 to 20% and Mg of 1 to 10% in mass with the balance consisting of Zn and unavoidable impurities or a plated layer containing Al of 4 to 20%, Mg of 1 to 10% and Si of 0.001 to 2% in mass with the balance consisting of Zn and unavoidable impurities; said plated layer contains an intermetallic compound having a melting point of 600° C. or higher by 0.001 to 0.5% in mass; and a plated steel material having an excellent surface smoothness is obtained by using an Al-type intermetallic compound wherein at least one of the lattice constants is in the range from 3 to 5 Å.
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Office Action issued in the Korean Patent application dated Mar. 27, 2006.
English-language translation of the Korean Office Action issued in the Korean Patent application dated Mar. 27, 2006.
European Search Report for European Patent Application No. EP 01 98 6159 dated Jun. 23, 2004.
Hatanaka Hidetoshi
Honda Kazuhiko
Miyake Tsuyoshi
Suemune Yoshihiro
Takahashi Akira
Dorsey & Whitney LLP
Lavilla Michael E.
Nippon Steel Corporation
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