Japan Society of Northern California | 2,524 followers on LinkedIn. Advancing U.S. - Japan collaboration and understanding in a global context | The Japan Society of Northern California is an educational non-profit organization and the West Coast’s leading forum on Japan and US-Japan relations. Its mission is to strengthen cooperation and understanding between the peoples of the United States and Japan in a changing world by providing programs that help to expand knowledge, increase personal interaction and facilitate discussion of important issues. Ever since our founding in 1905, the Japan Society has believed in the power of knowledge and personal contact to bring peoples and countries together.