By Marika Katanuma / BloombergAt first glance, things seem to be getting better for Japanese women. However, even with these advantages, Japanese women — whether single or married, full-time or part-time — face a difficult financial future. Japanese women make only 73 percent that of men, according to the Organisation for Economic Co-operation and Development (OECD). A separate study did the math for Japanese women: They would run out of money 20 years before they die. However, there are additional obstacles for Japanese women.