Appeal No. 1997-2499
Application No. 08/228,449
specification defines these terms in reference to figure 19 on
pages 37-38 of the specification. Based upon the disclosure
therein we determine that the heating and near IR irradiation
unit 164 is provided in a cylindrical casing 158 and
additionally contains a concave surface reflecting mirror
element 164a and a halogen lamp 164b arranged at the focus of
this concave surface reflecting mirror element 164a.
In comparing the claimed subject matter to MITA, the
reference discloses an apparatus devoid of “heating and near
IR irradiation means, provided in a part of said casing
means.” The color of MITA’s coloring pen is erased or changed
by light irradiation. See pages 1, 2 and 6. The light may
even have wavelengths including near infrared rays. However,
we find no heating means present in MITA’s apparatus. Neither
do we find near IR irradiation means present in MITA’s pen.
Indeed the only light source specifically taught is sunlight.
See pages 11 and 12. Based upon the above considerations, we
find no teaching or suggestion to incorporate either near IR
irradiation means or heating means into the erasing apparatus
of MITA. Nor do we find any teaching or suggestion in Nagae
that a heating and near infrared irradiation means may be
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