Japanese phones outside japan
I think fujitsu et al will probably struggle to shift large volumes outside Japan until such time as there is another major shift in trend for what gets put into a phone. These days we've got everything we want coming from brands that we are all familiar with for our mobile devices.
For the majority of people picking a new smartphone tends (it seems to me) to be a choice between the offerings of Apple, HTC and Samsung, with an occasional glance at Sony / Nokia & others on the fringe like LG. Unless Fujitsu / Panasonic were to produce something truly spectacular or very well priced for its features, they're just not going to win over the hearts and minds.