Tokyo is served by the port of Yokohama, but is not a cruise port. In total, Yokohama acts as the embarkation point for around sixty-five cruises per year from Celebrity, Holland America, Royal Caribbean and more to Asia, as well as other places.
Cruises scheduled from Tokyo during the peak seasons of spring and summer are much more expensive than the the low season of winter. On average sailings from Tokyo are fairly expensive compared to other ports. Check out the diagram below for the monthly average cost per day (cruises only depart from Tokyo between February and December).