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Ex parte NAITO et al. - Page 2Legal Research Home > Board of Patent Appeals and Interferences > 1998 > Ex parte NAITO et al. - Page 2 Sponsored Links
Appeal No. 96-0496
Application No. 08/131,332
been canceled. Thus, the claims on appeal before us are claims
5, 6, 9 through 12 and 16 through 18, all the claims pending in
the application.
The invention is directed to a disk cartridge best
illustrated by reference to representative independent claim 5,
reproduced as follows:
5. A disk cartridge, comprising:
a cartridge casing;
an overwrite type magneto-optical disk rotably mounted
in the cartridge casing; and
magnetic initializing means, including a yoke and
magnetic means disposed within the cartridge casing proximate to
a radial portion of the overwrite type magneto-optical disk so as
to generate a magnetic field sufficient for effecting overwrite
operation of the overwrite type magneto-optical disk;
wherein the yoke of the magnetic initializing means
comprises an upper arm and a lower arm arranged such that a
radial portion of the overwrite type magneto-optical disk passes
between the upper and lower arms of the magnetic initializing
means according to rotation thereof; and
wherein the magnetic means comprises a pair of upper
initializing magnets disposed in parallel on the inner surface of
the upper arm of the yoke and a pair of lower initializing
magnets disposed in parallel on the inner surface of the lower
arm of the yoke both of the upper and lower pairs of the
initializing magnets being arranged in parallel to a radial
direction of the disk such that a radial portion of the overwrite
type magneto-optical disk passes between the initializing magnets
during rotation thereof.
The examiner relies on the following references:
Nemoto et al. 4,750,064 Jun. 7, 1988
(Nemoto)
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