Mitsumura Kyoiku Tosho

Mitsumura Kyoiku Tosho Co., Ltd. (光村教育図書株式会社) is a Japanese educational publisher headquartered in Nishi-Gotanda, Shinagawa-ku, Tokyo. It was established in 1964 and is an affiliated company of Mitsumura Tosho Publishing Co., Ltd., the publisher known for its Japanese-language (kokugo) school textbooks. The company describes itself as having been born as a publisher of supplementary materials conforming to kokugo textbooks, and it has since delivered what it calls 'the real thing' to children through teaching materials, dictionaries and children's books. The company's product range spans picture books (ehon), elementary school teaching materials, junior high school teaching materials, dictionaries, textbook guides, and school library sets. Its website organizes offerings into four main service categories: picture books, elementary school materials, junior high school materials, and school library sets. Among its recommended titles are 'Akane-ko Yoku Wakaru Dokkai Skill' (reading-comprehension skills), the 'Shogaku Shin Kokugo Jiten' (New Elementary Japanese Dictionary, third edition), and 'Mitsumura no Kokugo no Work' (Mitsumura's Japanese-language workbook). It also publishes new picture books such as 'Boku no Osekkai Dragon' and 'Atama ni Kinoko ga Haechatta!'. A notable recent focus is digital teaching material. The company promotes 'Tomopura', an integrated digital teaching-material service designed to make instruction and learning in the Japanese-language subject more effective and efficient, and it has published related content such as a manga-based Japanese dictionary tied to Tomopura. It also operates a dedicated portal, MKRC, for its sales-channel partners (bookstores and dealers). The company's stated corporate philosophy is to stand close to each individual child, support the growth of solid academic ability and a rich heart, contribute to a sustainable society, and pursue a company where employees can take pride and find fulfillment in their work. Its branding message, 'Hitotsu zutsu, hitori zutsu no "manabitai" e.' ('To each one, to each person's "want to learn"'), emphasizes individualized learning rather than treating children as a single category. As of the available information, the company is a private company with capital of 40 million yen, led by President and Representative Director Shuji Yuchi. It is not a listed company and operates primarily in the Japanese domestic education market.

Mitsumura Kyoiku Tosho Co., Ltd. was established in 1964 (Showa 39). It is an affiliated company of Mitsumura Tosho Publishing Co., Ltd., a publisher known for its Japanese-language (kokugo) school textbooks. According to the company's own branding narrative, it was founded as a company that sold supplementary materials conforming to kokugo textbooks, and over the years it has delivered teaching materials, dictionaries and children's books to children. The company is headquartered in Nishi-Gotanda, Shinagawa-ku, Tokyo, and has capital of 40 million yen. Its representative is President and Representative Director Shuji Yuchi. As an affiliated company of Mitsumura Tosho, it operates in the Japanese educational publishing market, focusing on materials that support classroom instruction and learning in elementary and junior high schools. Over time, the product line expanded from textbook-aligned supplementary materials to include dictionaries, picture books, textbook guides, and school library sets. In recent years the company has invested in digital teaching materials, most notably the integrated digital teaching-material service 'Tomopura' for Japanese-language instruction, and it has developed related content such as a manga-based Japanese dictionary. It also maintains a dedicated portal (MKRC) for its sales-channel partners. The company's corporate philosophy emphasizes standing close to each individual child, supporting the growth of solid academic ability and a rich heart, contributing to a sustainable society, and creating a workplace where employees can take pride and find fulfillment. Its branding message, 'Hitotsu zutsu, hitori zutsu no "manabitai" e.', reflects a commitment to individualized learning.

• 2026

  Released new picture books and Tomopura-related manga dictionary content.

• 1964

  Company established (Showa 39).

• Launched Tomopura, an integrated digital teaching-material service for Japanese-language instruction.

• Published 'Shogaku Shin Kokugo Jiten' third edition.

Educational publisher specializing in supplementary materials aligned with Mitsumura Tosho's Japanese-language textbooks, emphasizing individualized learning and the delivery of authentic materials to children.

• Tomopura

  Integrated digital teaching-material service for effective and efficient Japanese-language instruction and learning.

• Shogaku Shin Kokugo Jiten (3rd edition)

  Elementary school Japanese-language dictionary.

• Akane-ko Yoku Wakaru Dokkai Skill

  Reading-comprehension skills teaching material.

• Mitsumura no Kokugo no Work

  Japanese-language workbook.

• School library sets

  Sets of books for school libraries.

1. 1光村教育図書 公式サイトmitsumura-kyouiku.co.jp
2. 2会社案内｜光村教育図書mitsumura-kyouiku.co.jp
3. 3コンセプト・ビジョン｜会社案内｜光村教育図書mitsumura-kyouiku.co.jp
4. 4採用情報｜会社案内｜光村教育図書mitsumura-kyouiku.co.jp
5. 5Mutsumura Kyoiku Tosho - Wikidatawikidata.org
6. 6光村教育図書 - Wikipediaja.wikipedia.org