Hita-Hita: Open Access and Institutional Repositories in Japan Ten Years On Ikuko Tsuchide, Yui Nishizono, Masako Suzuki, Shigeki Sugita, Kazuo Yamamoto and Hideki Uchijima introduce a number of ideas and projects that have enhanced the progress of the Open Access movement and institutional repositories in Japan over the last ten years. In Japan, Chiba University established the country's first in