  We discuss a D-term inflation scenario where a right-handed sneutrino can be
an inflaton field leading to a viable inflation and leptogenesis, with a
minimal form of K\"ahler potential. The decay of an inflaton sneutrino can
non-thermally create large enough lepton asymmetry. Its entropy production is
also big enough to ameliorate the gravitino problem caused by too high a
reheating temperature from the decay of a symmetry breaking field.
