Historic Architecture Network (a.k.a. HARNET) is an organization with a membership comprised of 35 local governments of Japan, 5 nationwide associations and 16 regional organizations for community revitalization (as of Sep 11, 2013).
Kunihiro Ando (professor emeritus at the University of Tsukuba)
Osamu Goto (professor at Kogakuin University)
Yukio Nishimura (professor at the University of Tokyo)
Technical personnel, experts, etc., who have knowledge of passing wooden buildings,etc, down the generations