Wikipedia
Kodansha
is a Japanese publishing company headquartered in Bunkyō, Tokyo, Japan. Kodansha is the largest Japanese publishing company, and it produces the manga magazines Nakayoshi, Afternoon, Evening, and Weekly Shonen Magazine, as well as more literary magazines such as Gunzō, Shūkan Gendai, and the Japanese dictionary Nihongo Daijiten. The company has its headquarters in Bunkyō, Tokyo. The Noma family (relatives of the founder) continue as owners of Kodansha.