US2005284257A1PendingUtilityA1

Pt alloy for ornament

Assignee: OSADA MASAMIPriority: Mar 9, 2004Filed: Sep 2, 2005Published: Dec 29, 2005

Est. expiryMar 9, 2024(expired)· nominal 20-yr term from priority

Inventors:Masami Osada Masahiko Azuma Shigeyasu Naruse

C22C 5/04A44C 27/003

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References

Claims

Abstract

A novel alloy contains Pt as a principal component and also contains 0.1 to 15% Ru and 0.1 to 15% Ir in weight rate in Pt to overcome a problem in that Vickers hardness (Hv) of the conventional Pt-based alloys do not correspond to requirements in diversified ornaments because of their respective Vickers hardness (Hv): Hv 125 to 135 for Pt—Pu-based alloys and Hv 80 to 100 for Pt—Ir-based alloys.

Claims

exact text as granted — not AI-modified

1 . A Pt alloy for an ornament, comprising 0.1 to 15% Ru, 0.1 to 15% Ir, and the remainder consisting of Pt in weight rate.  
   
   
       2 . A Pt alloy for an ornament, comprising 0.1 to 14% Ru, 0.1 to 14% Ir, 0.1 to 5.0% Ag, 0.1 to 5.0% Cu, and the remainder consisting of Pt in weight rate.  
   
   
       3 . A Pt alloy for an ornament, comprising 0.1 to 14% Ru, 0.1 to 14% Ir, 0.1 to 5.0% Ga, 0.1 to 5.0% In, and the remainder consisting of Pt in weight rate.  
   
   
       4 . A Pt alloy for an ornament, comprising 0.1 to 14% Ru, 0.1 to 14% Ir, 0.1 to 5.0% Ag, 0.1 to 5.0% Cu, 0.1 to 5.0% Ga, 0.1 to 5.0% In, and the remainder consisting of Pt in weight rate.

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