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. 13, 2001
Filed:
Mar. 20, 2000
Applicant:
Inventors:
Izumi Muto, Hikari, JP;
Michio Nakata, Hikari, JP;
Yoshihiro Fujii, Hikari, JP;
Kenji Hirashima, Hikari, JP;
Shuji Nagasaki, Hikari, JP;
Jun Nakatsuka, Tokyo, JP;
Tsuyoshi Nakano, Hikari, JP;
Assignee:
Nippon Steel Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 3/840 ;
U.S. Cl.
CPC ...
C22C 3/840 ;
Abstract
An ultrathin stainless steel foil of a thickness of 25 &mgr;m or less whose average number of inclusions of a major diameter of 5 &mgr;m or greater per 1 mm,in sections along the rolling direction is 3 or less. The ultrathin stainless steel foil is not readily susceptible to the local tunnel-like corrosions (voids) that have occasionally occurred, during etching, together with cracking in the rolling direction from the edges.