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:
Sep. 06, 1977
Filed:
Dec. 09, 1976
Applicant:
Inventors:
Hiroshi Takechi, Kisarazu, JA;
Mitsunobu Abe, Kisarazu, JA;
Matsuo Usuda, Kisarazu, JA;
Kunihiko Komiya, Kimitsu, JA;
Assignee:
Nippon Steel Corporation, , JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D / ;
U.S. Cl.
CPC ...
148 / ; 148 36 ; 148134 ;
Abstract
A vibration damping steel containing C .ltoreq. 0.10% and Mn .ltoreq. 0.40% as the essential constituents and having a lower yield point or 0.2% proof stress of 7-28kg/mm.sup.2 with the degree of refinement of the steel being not less than 0.18 while still maintaining the specific gravity at 7.859g/cm.sup.3 or less, and a process for producing the same. This steel material is particularly suited for use in items which to produce and transmit vibration and noise.