A comparative and socio-legal research on the multiple form and diversity of the family and lawJapan Society for the Promotion of Science: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)TOKOTANI FUMIO INUBUSHI Yukiko IWASHI Waichirou TANAMURA Masayuki MINAMIKTA Satoshi NINOMIYA Shuhei NOZAWA Norimasa MOTOZAWA Miyoko ISHII Michiko OOSHIMA Risa KAMIO Machiko KIM Yangwhan KURIBAYASHI Kayo SHIMIZU Tokiyo TAMAKI Teiko HABU Kaori HAYANO Toshiaki MORITA Nobuaki WATANABE Yasuhiko HARADA Ayako