TV and Radio Lectures
・Radio lecturer "Nature and Culture" on NHK 2010
・Radio lecturer in Mathematics on NHK 1994-2001
・TV lecturer in Mathematics on NHK 1991-2012

Popular Math and Science Shows on TV
・The Most Fascinating Lecture in the World. Nihon TV. 2005-present
・Teach Me Science, Galileo. Nihon TV. 1992-1993
・Math in Daily Life. Fuji TV. 1982

Newspaper and Magazine Column
・WEB RONZA, Asahi Shimbun 2012-present
・Math in Dairy Life, Sankei Shimbun 2008-2010
・My Treasured Casket, Nihon Keizai Shimbun 2006
・Compass, Shinano Mainichi Shimbun 2005-present
・My Favorite Towns, no.1－10, Tokyo Shimbun 2000
・Science Land, no.1－30, Yomiuri Simbun 1998-1999
・Delicious Essays, no.1-6，Sankei Shimbun 1998
・Milestone of My Youth, no.1-9，Nihon Keizai Shimbun 1998
・Infinity of Ljfe, no.1－47, Asahi Weekly Magazine (Asahi Shimbun)1995-1997
・Talks with Scientists, no.1－15，Quark (Kodansya)1993－1994
・A Record of Personal Experiences, no.1－89, Assent(Sundai Bunko)1989-1997

Non mathematical Books authored
・Comments on Social Affairs, Asahi Newspaper 2000
・Mathematical Livelihood, Asahi Newspaper 1999
・Rediscovery of Mathematical Life, Chuo Koron 1990