Back Japan Down Syndrome Society Last updated: 12 June 2026 Organisation Details Abbreviation JDSS Website http://www.jdss.or.jp/ (opens in a new tab) Primary Address 3-43-11 Minamiotsuka Toshima-ku Tokyo, Greater Tokyo Area 170-0005 Japan Where this information comes from Sourced from public information Scope Disability Down Syndrome Geographic Scope Country Contact Information Contact details protectedTo access contact information for existing DPOs you need to create an account first. This enables us to verify your details, check you are a human, and help protect DPOs from unwanted spam.Sign InCreate Account