  We measure the current and shot noise in a quantum dot (QD) in the Kondo
regime to address the non-equilibrium properties of the Kondo effect. By
systematically tuning the temperature and gate voltages to define the level
positions in the QD, we observe an enhancement of the shot noise as temperature
decreases below the Kondo temperature, which indicates that the two-particle
scattering process grows as the Kondo state evolves. Below the Kondo
temperature, the Fano factor defined at finite temperature is found to exceed
the expected value of unity from the non-interacting model, reaching $1.8 \pm
0.2$.
