Tokyo:  A Japanese high court ruled Thursday that denying same-sex marriage is “unconstitutional” and called for urgent government action to address the lack of any law allowing for such unions. The court does not have the power to overturn the current marriage law, which has been interpreted to restrict marriage between a man and a woman.Tokyo:  A Japanese high court ruled Thursday that denying same-sex marriage is “unconstitutional” and called for urgent government action to address the lack of any law allowing for such unions. The court does not have the power to overturn the current marriage law, which has been interpreted to restrict marriage between a man and a woman.