  We present our latest results on near- to mid- infrared observation of
SN2006jc at 200 days after the discovery using the Infrared Camera (IRC) on
board $AKARI$. The near-infrared (2--5$\mu$m) spectrum of SN2006jc is obtained
for the first time and is found to be well interpreted in terms of the thermal
emission from amorphous carbon of 800$\pm 10$K with the mass of $6.9\pm 0.5
\times 10^{-5}M_{\odot}$ that was formed in the supernova ejecta. This dust
mass newly formed in the ejecta of SN 2006jc is in a range similar to those
obtained for other several dust forming core collapse supernovae based on
recent observations (i.e., $10^{-3}$--$10^{-5}$$M_{\odot}$). Mid-infrared
photometric data with {\it{AKARI}}/IRC MIR-S/S7, S9W, and S11 bands have shown
excess emission over the thermal emission by hot amorphous carbon of 800K. This
mid-infrared excess emission is likely to be accounted for by the emission from
warm amorphous carbon dust of 320$\pm 10$K with the mass of 2.7$^{+0.7}_{-0.5}
\times 10^{-3}M_{\odot}$ rather than by the band emission of astronomical
silicate and/or silica grains. This warm amorphous carbon dust is expected to
have been formed in the mass loss wind associated with the Wolf-Rayet stellar
activity before the SN explosion. Our result suggests that a significant amount
of dust is condensed in the mass loss wind prior to the SN explosion. A
possible contribution of emission bands by precursory SiO molecules in
7.5--9.5$\mu$m is also suggested.
