Metal treatment – Stock – Magnetic
Reexamination Certificate
2011-04-12
2011-04-12
Yee, Deborah (Department: 1733)
Metal treatment
Stock
Magnetic
C148S306000, C148S110000, C148S111000
Reexamination Certificate
active
07922834
ABSTRACT:
A main object thereof is to provide a non-oriented electrical steel sheet being excellent in surface characteristics and having both excellent mechanical characteristics and magnetic characteristics necessary for a rotor of rotating machines such as motors and generators which rotate at a high speed, and a method for producing the same. To achieve the object, the present invention provides a non-oriented electrical steel sheet comprising in % by mass: 0.06% or less of C; 3.5% or less of Si; from 0.05% or more to 3.0% or less of Mn; 2.5% or less of Al; 0.30% or less of P; 0.04% or less of S; 0.02% or less of N; at least one element selected from the group consisting of Nb, Ti, Zr and V in the predetermined range; and a balance consisting of Fe and impurities; and having a recrystallized fraction being less than 90%.
REFERENCES:
patent: 4306922 (1981-12-01), Coombs et al.
patent: 120635 (1998-12-01), None
patent: 0 875 586 (1998-11-01), None
patent: 47-25249 (1972-07-01), None
patent: 60-238421 (1985-11-01), None
patent: 01-162748 (1989-06-01), None
patent: 02-008346 (1990-01-01), None
patent: 04-072904 (1992-03-01), None
patent: 06-330255 (1994-11-01), None
patent: 09-035925 (1997-02-01), None
patent: 10-212558 (1998-08-01), None
patent: 10-237606 (1998-09-01), None
patent: 11-012701 (1999-01-01), None
patent: 2001-172752 (2001-06-01), None
patent: 2001-234302 (2001-08-01), None
patent: 2002-146493 (2002-05-01), None
patent: 2004-027278 (2004-01-01), None
patent: 2005-113185 (2005-04-01), None
patent: 2006-070348 (2006-03-01), None
patent: 2006-199999 (2006-08-01), None
patent: 2006-219692 (2006-08-01), None
Fujimura Hiroshi
Nishida Kouji
Nitomi Hirokatsu
Takamaru Hiroki
Tanaka Ichirou
Clark & Brody
Sumitomo Metal Industries Ltd.
Yee Deborah
LandOfFree
Non-oriented electrical steel sheet and production process... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Non-oriented electrical steel sheet and production process..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-oriented electrical steel sheet and production process... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2672434