Japan's failure to sign the convention is extremely damaging to Japanese nationals living overseas, since it makes it far harder for them to bring their children to Japan for visits, and encourages them to break foreign criminal laws that
prohibit international child abduction.
The judge could also
prohibit either of you from taking the
child to a country that does not follow certain rules on
international child abduction, force you to surrender your
child's passport or post a bond large enough to discourage
abduction.