Appeal No. 1998-0880
Application No. 08/649,909
This is a decision on appeal from the final rejection of
claims 2 through 4, 8, 12 through 14, 16 and 18, all claims 1
pending in this application.
The invention relates to a magneto-resistance (MR) device
having two layers of half-metallic ferromagnetic material,
separated by an electrically insulating layer of non-
ferromagnetic material.
Independent claim 16 is reproduced as follows:
16. A magneto-resistive device comprising two layers
of ferromagnetic material mutually separated essentially only
by at least one layer of a non-ferromagnetic material,
characterized in that said at least one layer of non-
ferromagnetic material is electrically insulating and is in
contact with one of said layers of ferromagnetic material and
at least one of the layers of ferromagnetic material comprises
a half-metallic material.
The references relied on by the Examiner are as follows:
Kamiguchi et al. 5,416,353 May 16, 1995
(filed Sep. 10, 1993)
Nakatani et al., “Changes in the electrical resistivity of Fe-
C/Al O /Fe-Ru multilayered films due to a magnetic field”,
2 3
Journal of Materials Science Letters, Vol. 10, 1991, pp. 827-
828.
1We note that claim 16 submitted in the appendix to the
brief is incorrect. The words "essentially only", added by
amendment c, are not recited.
2
Page: Previous 1 2 3 4 5 6 7 Next
Last modified: November 3, 2007