  A novel concept of a high luminosity hadron collider is proposed. This would
be a typical application of an induction synchrotron being newly developed.
Extremely long bunches, referred to as superbunches, are generated by a multi-
bunch stacking method employing barrier buckets at the injection into the
collider, and are accelerated to the collider energy with an step-voltage
induced in the induction gaps. Superbunches intersect with each other, yielding
a luminosity of more than $10^{35} /cm^2/sec$. A combination of vertical
crossing and horizontal crossing can be used in order to avoid any significant
beam-beam tune shift.
