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:
Jan. 16, 2007
Filed:
Jul. 02, 2003
Hideki Matsuoka, Tokyo, JP;
Yasushi Tanaka, Tokyo, JP;
Reiko Sugihara, Tokyo, JP;
Tatsuhiko Hiratani, Tokyo, JP;
Kenichiro Takayanagi, Tokyo, JP;
Masamichi Okada, Tokyo, JP;
Hiroaki Kato, Tokyo, JP;
Hideki Matsuoka, Tokyo, JP;
Yasushi Tanaka, Tokyo, JP;
Reiko Sugihara, Tokyo, JP;
Tatsuhiko Hiratani, Tokyo, JP;
Kenichiro Takayanagi, Tokyo, JP;
Masamichi Okada, Tokyo, JP;
Hiroaki Kato, Tokyo, JP;
JFE Steel Corporation, Tokyo, JP;
Abstract
A steel sheet for a tension mask excellent in the shielding properties from geomagnetism consists essentially of lower than 0.1% by weight of C, lower than 0.2% by weight of Si, 0.4 to 2% by weight of Mn, not higher than 0.1% by weight of P, not higher than 0.03% by weight of S, not higher than 0.01% by weight of sol. Al, 0.003 to 0.02% by weight of N and the balance of Fe, and has an anhysteretic magnetic permeability of 5,000 or higher.