Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Reexamination Certificate
2005-11-15
2005-11-15
Resan, Stevan A. (Department: 1773)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
C428S407000, C428S692100, C428S690000
Reexamination Certificate
active
06964811
ABSTRACT:
A magnetic powder consisting of substantially spherical or ellipsoidal particles comprising a transition metal which comprises iron and a rear earth element which is mainly present in the outer layer of the magnetic powder particles, and having a particle size of 5 to 200 nm, a coercive force of 80 to 400 kA/m and a saturation magnetization of 10 to 25 uWb/g.
REFERENCES:
patent: 4020236 (1977-04-01), Aonuma et al.
patent: 4324177 (1982-04-01), Tsuji et al.
patent: 4451535 (1984-05-01), Pingaud et al.
patent: 4643942 (1987-02-01), Ohtsubo
patent: 4952444 (1990-08-01), Kawamata et al.
patent: 5156922 (1992-10-01), Mishima et al.
patent: 5252380 (1993-10-01), Nakazumi et al.
patent: 5380905 (1995-01-01), Haidos et al.
patent: 5496607 (1996-03-01), Inaba et al.
patent: 5518804 (1996-05-01), Mizuno et al.
patent: 5637390 (1997-06-01), Isobe et al.
patent: 5645917 (1997-07-01), Ejiri et al.
patent: 5935674 (1999-08-01), Saito et al.
patent: 6372338 (2002-04-01), Jeffers et al.
patent: 6517934 (2003-02-01), Kishimoto
patent: 52-5720 (1977-02-01), None
patent: 55-86103 (1980-06-01), None
patent: 57-183629 (1982-11-01), None
patent: 60-130103 (1985-07-01), None
patent: 60-157719 (1985-08-01), None
patent: 05-090018 (1991-03-01), None
patent: 03-097203 (1991-04-01), None
patent: 4-19815 (1992-01-01), None
patent: 5-234064 (1993-09-01), None
patent: 6-25702 (1994-02-01), None
patent: 6-139553 (1994-05-01), None
patent: 2000-277311 (2000-10-01), None
patent: 2000-315312 (2000-11-01), None
patent: 2001-67649 (2001-03-01), None
patent: 2001-176715 (2001-06-01), None
patent: 2002-288817 (2002-10-01), None
patent: WO00/0048210 (2000-08-01), None
MAchine Translation of JP05-090018.
Machine Translation of JP2000-277311.
Nagatomi et al., Powder and Powder Metallurgy, vol. 46, No. 2, pp. 151-155, (1999).
Hattori et al., Trans. Of the Mag. Soc. Of Japan, vol. 25, pp. 927-930, (2001).
Kishimoto Mikio
Kitahata Yumiko
Sasaki Yuji
Watanabe Hideaki
Hitachi Maxell Ltd.
Resan Stevan A.
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