Kirk here with some news / history. Important events in the history of Hansen's disease (leprosy) have unfolded here in Kumamoto. One such event was the 2001 Kumamoto District Court ruling that held that the central government’s segregation policy was unconstitutional.
That was a big step forward but this article indicates that there's still a lot of work to be done.
Survey: Fearing prejudice, 38% of leprosy patients use false names | The Asahi Shimbun: Breaking News, Japan News and Analysis
Nearly 40 percent of leprosy patients are still living under false names to shield themselves and their families from prejudice and discrimination, an Asahi Shimbun survey showed.