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We present our latest results on near- to mid- infrared observation ofSN2006jc at 200 days after the discovery using the Infrared Camera (IRC) onboard $AKARI$. The near-infrared (2--5$\mu$m) spectrum of SN2006jc is obtainedfor the first time and is found to be well interpreted in terms of the thermalemission 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 dustmass newly formed in the ejecta of SN 2006jc is in a range similar to thoseobtained for other several dust forming core collapse supernovae based onrecent observations (i.e., $10^{-3}$--$10^{-5}$$M_{\odot}$). Mid-infraredphotometric data with {\it{AKARI}}/IRC MIR-S/S7, S9W, and S11 bands have shownexcess emission over the thermal emission by hot amorphous carbon of 800K. Thismid-infrared excess emission is likely to be accounted for by the emission fromwarm amorphous carbon dust of 320$\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 astronomicalsilicate and/or silica grains. This warm amorphous carbon dust is expected tohave been formed in the mass loss wind associated with the Wolf-Rayet stellaractivity before the SN explosion. Our result suggests that a significant amountof dust is condensed in the mass loss wind prior to the SN explosion. Apossible contribution of emission bands by precursory SiO molecules in7.5--9.5$\mu$m is also suggested.

Properties of newly formed dust by SN2006jc based on near-to-mid infrared observation with AKARI