Japanese courts will recognize a final foreign judgment and enforce it in Japan if it meets certain conditions. First, the judgment must have been ordered by a court with proper jurisdiction and proper service must have been given to the defendant. Second, the judgment must not be contrary to public policy in Japan. Finally, a Japanese court will be reluctant to enforce a foreign judgment if the foreign country does not recognize Japanese court judgments in return.
Arbitration is a very flexible and powerful tool for resolving many different kinds of disagreements but it does not apply to every type of legal dispute. Generally, arbitration agreements apply to civil disputes that can normally be resolved through a settlement agreement.