The Beagle 2 was carried to Mars attached to the European Mars Express; it dropped off when Mars Express arrived for its (failed) landing.
The Japanese sent an orbiter to Mars at the same time, but unfortunately it was trashed by solar flares.
The Japanese have had their problems with solar flares -- earlier this year they lost one GEO satellite, and another went into a safe mode, to the effects of the huge flares back in October.