  We report recent results of a WIMP dark matter search experiment using 310g
of CaF2(Eu) scintillator at Kamioka Observatory. We chose a highly radio-pure
crystal, PMTs and radiation shields, so that the background rate decreased
considerably. We derived limits on the spin dependent WIMP-proton and
WIMP-neutron coupling coefficients, a_p and a_n. The limits excluded a part of
the parameter space allowed by the annual modulation observation of the DAMA
NaI experiment.
