Appeal No. 1997-2499
Application No. 08/228,449
THE CLAIMS
Claims 7, 11 and 68 are illustrative of appellants’
invention and are reproduced below.
7. A method of erasing a recording agent on a recording
surface of a recording medium recorded by a catalyst-
containing recording agent comprising a near IR erasable dye,
said method comprising the steps of:
feeding the recording medium along a feeding path with
respect to a thermal emission and near IR irradiation source
such that a heating of the recording medium and an irradiation
of near infrared rays onto the recording surface of the
recording medium are simultaneously carried out by said
thermal emission and near IR irradiation source; and
varying a feeding speed of the recording medium in
accordance with a temperature change of said feeding path, a
temperature of said feeding path being controlled to be within
a temperature range from approximately 200°C through 410°C.
11. An erasing apparatus for erasing a recording agent
on a recording surface of a recording medium recorded by a
recording agent comprising a near IR-erasable dye, said
apparatus comprising:
liquid-state catalyst coating means for coating a liquid-
state catalyst on the recording surface of the recording
medium; and
erasing processing means for heating the recording medium
on which the liquid-state catalyst is coated by said liquid-
state catalyst coating means, and for irradiating the near
infrared rays onto the recording surface of said recording
medium, thereby erasing the recording agent of said recording
surface, wherein:
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