It's probably just as difficult to find a happily employed Westerner in a Japanese company as it is to find weapons of mass destruction in Iraq.
Please correct me if I'm wrong, but I have yet to come across a Western worker who has found the Japanese workplace to be comfortable, inspiring, psychologically fulfilling or ultimately rewarding.
They point out the structural rigidity, lack of personal office space per person, the breakdown in communications, the antiquated protocol masquerading as tradition, the general mistreatment of female staff, to name just a few.