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. 16, 2010
Filed:
Sep. 28, 2005
Masafumi Miyazaki, Futtsu, JP;
Wataru Ohashi, Futtsu, JP;
Yousuke Kurosaki, Futtsu, JP;
Takeshi Kubota, Futtsu, JP;
Hiroshi Harada, Himeji, JP;
Tomohiro Konno, Himeji, JP;
Yutaka Matsumoto, Kitakyushu, JP;
Koichi Kirishiki, Kitakyushu, JP;
Masafumi Miyazaki, Futtsu, JP;
Wataru Ohashi, Futtsu, JP;
Yousuke Kurosaki, Futtsu, JP;
Takeshi Kubota, Futtsu, JP;
Hiroshi Harada, Himeji, JP;
Tomohiro Konno, Himeji, JP;
Yutaka Matsumoto, Kitakyushu, JP;
Koichi Kirishiki, Kitakyushu, JP;
Nippon Steel Corporation, Tokyo, JP;
Abstract
Non-oriented electrical steel sheet superior in core loss characterized by containing, by mass %, C: 0.01% or less, Si: 0.1% to 7.0%, Al: 0.1% to 3.0%, Mn: 0.1% to 2.0%, N: 0.005% or less, Ti: 0.02% or less, REM: 0.05% or less, S: 0.005% or less, O: 0.005% or less, and a balance of iron and unavoidable impurities and having a mass % of S shown by [S], a mass % of O shown by [O], a mass % of REM shown by [REM], a mass % of Ti shown by [Ti], and a mass % of N shown by [N] satisfying [Formula 1] and [Formula 2]:[REM]×[O]×[S]≧1×10  [Formula 1]([REM]×[O]×[S])÷([Ti]×[N])≧1×10  [Formula 2].