Skip to content

Kaiseisha

Japanese publisher specializing in children's books, founded in 1936.

Last updated September 11, 2026

AI crawler reads

No AI crawler has read this profile since Oct 28, 2026.

Overview

Kaiseisha is a Japanese publisher. According to its company profile, it was founded in 1936 and initially published not only children's books but also literary, economic, and historical works; after the war it became a publisher specializing in children's books. Its company name expresses the meaning "to grow together," reflecting the founder's wish that the company mature alongside its readers, especially children. The company is headquartered in Shinjuku-ku, Tokyo, and its representative director president is Imamura Yuji.

History

Kaiseisha was founded on November 3, 1936, by Imamura Genzaburo in Nihonbashi, Chuo-ku, Tokyo, and was named Kaiseisha, meaning "to grow together." In December 1937 it moved to Takaracho, Kyobashi-ku. In 1940, 『娘時代』 by Osako Michiko, who was raised in America and wrote frankly about a woman's views, was a hit, and together with its sequel 『娘の真実』 recorded 500,000 copies. In March 1945 the Nihonbashi office was destroyed by the Tokyo air raids, and the company moved to Imamura Genzaburo's residence in Gotanda, Shinagawa-ku; in November it resumed publishing activities. In 1946 it published new titles mainly consisting of translations such as 『小公子』 and 『母を尋ねて』, and that year became a publisher specializing in children's books. In September 1947 it moved to Ichigaya Sadoharacho, Shinjuku-ku. In 1949 Kaiseisha was reorganized into a kabushiki gaisha (stock company). In 1950 it launched the "世界名作文庫" (140 volumes), translating world literature into forms easy for children to read, with a total of 46 authors including Shibata Renzaburo and Enchi Fumiko writing for it; amid many boys' and girls' magazines being published by other companies, Kaiseisha also began publishing the monthly magazine "少女サロン" (until 1955) in April. In 1952 it began publishing the children's science book series "図説文庫" (44 volumes). In October 1957 it published "なかよし絵文庫" (60 volumes) for lower elementary school grades, and for middle elementary grades it began publishing the world girls' novel masterpiece selection "世界少女名作全集" (40 volumes), including 『少女パレアナ』, 『赤毛のアン』, and 『若草物語』. In 1961 it published 『星と伝説』, a collection of star legends from around the world.

Products and positioning

A publisher specializing in children's books, offering a wide range of works from original and translated picture books to children's literature and knowledge-building books.

  • 世界名作文庫 (140 volumes)

  • 図説文庫 (44 volumes)

  • なかよし絵文庫 (60 volumes)

  • 世界少女名作全集 (40 volumes)

  • 星と伝説

Sources4 sources

Cite this profile: Cite the canonical profile. /brand-wiki/kaiseisha · Editorial policy · How profiles are compiled