Here's another link on that site: http://home.f01.itscom.net/spiral/hashima/hashima001.html. Since I don't speak Japanese I did a quick search on the name "Hashima". Here's the link I found: http://www.uwosh.edu/home_pages/faculty_staff/earns/hashima.html
Truly a sad story, but quite interesting. I learned a little more about the Japan of the WWII era and the Mitsibishi corporation and thought you might be interested too.