The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 25, 1997
Filed:
Nov. 04, 1994
Applicant:
Inventors:
Shin-ichi Yamagata, Hyogo, JP;
Yoshishige Takano, Hyogo, JP;
Tetsuya Hayashi, Hyogo, JP;
Yugaku Abe, Hyogo, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
75230 ; 75244 ; 75249 ; 428548 ; 428552 ;
Abstract
A nitrogenous Al--Si powder metallurgical alloy contains at least 4 wt % and at most 15 wt % of nitrogen, with the remaining part consisting essentially of Al, Si and an unavoidable component. Consequently, a highly safe material which is lightweight and has a density of at most 3.0 g/cm.sup.3, a thermal expansion coefficient in the range of 5 to 10.times.10.sup.-6 /.degree.C., and a thermal conductivity coefficient of at least 0.2 cal/cm.multidot.sec.multidot..degree.C. has been obtained.