国立国会図書館
He supervised the Ariadne software system, a digital library system, which made an impact upon digital library research in Japan and over the world. While the National Diet Library of Japan holds a traditional slogan "Truth makes us free" (John 8:32), a new slogan "Through knowledge we prosper" was proposed by him as the director. He gave a keynote lecture in the Wikimedia Conference Japan 2009.