  The Higgs inflation scenario is an approach to realize the inflation, in
which the Higgs boson plays a role of the inflaton without introducing a new
particle. We investigate a Higgs inflation scenario in the so-called radiative
seesaw model proposed by E. Ma. We find that a part of parameter regions where
additional scalar fields can play a role of an inflaton is compatible with the
current LHC results, the current data from neutrino experiments and those of
the dark matter abundance as well as the direct search. We show that we can
partially test this model by measuring masses of scalar bosons at the
International Linear Collider.
