NIPPONHYOJUN Co.Ltd.
A Japanese educational publisher producing elementary-school tests, drills, teaching materials and classroom supplies.
Last updated September 29, 2026
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Overview
NIPPONHYOJUN Co.Ltd. (日本標準, Nippon Hyōjun) is a Japanese educational publisher headquartered in Hidaka, Saitama Prefecture. The company was founded in 1950 by Katsuji Ishibashi and is best known for producing elementary-school teaching materials, including tests, drills, workbooks, teaching tools and classroom supplies. Its product range covers Japanese language, mathematics, science, social studies, English, home economics and moral education, and it also publishes educational books and dictionaries. The company's core offerings include school tests such as the A Test, EX Test, S Test and Power-Up Test; repeated-practice kanji and calculation drills; kanji and calculation practice notebooks; penmanship notebooks; social studies reference collections; and music workbooks. In addition to printed materials, Nippon Hyojun supplies teaching tools and materials such as sewing sets, calligraphy sets, drawing sets, arithmetic sets and home economics materials, many of which feature licensed characters including Miffy, One Piece, Super Mario, Astro Boy and others. Nippon Hyojun operates a nationwide sales network in Japan that grew from 250 dealers in 1957 to over 600 by 1970. The company established the Nippon Hyojun Education Award in 1975 and launched the home-learning magazine "Gekkan Hatsuratsu" in 1977. It has also developed digital and online educational content, and maintains an integrated logistics center in Hidaka. The company is privately held and remains active in the Japanese educational publishing market.
History
Nippon Hyojun was founded in 1950 by Katsuji Ishibashi, who launched the monthly "Hyojun Test" covering Japanese, mathematics, social studies and science. In 1957 the company was reorganized as a joint-stock company (kabushiki gaisha) and completed a nationwide sales network of 250 dealers. The following year, in 1958, it established the Nippon Hyojun Education Research Institute. By 1959 the number of affiliated dealers had grown to 350, and by 1966 it exceeded 500 nationwide. In 1970 the network reached 600 stores. In 1975 the company created the Nippon Hyojun Education Award, with the first award ceremony held in 1976. In 1977 it launched the home-learning magazine "Gekkan Hatsuratsu." In 1983 the completion of the first and second new logistics centers brought the total logistics center area to 12,300 square meters. In 1990 the head office and logistics center were fully networked online. In 1996 the Nishi-Ogikubo branch was established and the editorial headquarters relocated there. In 1997 the company-wide information system went into operation and the company opened its internet homepage. In 1998 the integrated logistics center was completed, and the Hatsuratsu Learning Club began nationwide expansion. The integrated logistics center began full operation in 1999. In 2000, the company celebrated its 50th anniversary, restructured operations into a two-pole structure of head office and integrated logistics center, and Masahiko Yamada became CEO. In 2006 the NPO Nippon Hyojun Education Research Institute was established. In 2015 Kiyoshi Ito, head of the corporate planning division, became representative director and president. In 2020 Shinzo Kawano, head of the editorial division, became representative director and president. On August 1, 2022, the head office functions were consolidated at the integrated logistics center. In 2025 Naoki Takahashi became representative director and president, and on May 31, 2025, Chairman Masahiko Yamada retired, becoming an advisor on June 1 of that year.
- 2025
Naoki Takahashi became representative director and president; Chairman Masahiko Yamada retired on May 31 and became advisor on June 1.
- 2022
Head office functions consolidated at the integrated logistics center on August 1.
- 2020
Shinzo Kawano became representative director and president.
- 2015
Kiyoshi Ito became representative director and president.
- 2006
Established NPO Nippon Hyojun Education Research Institute.
- 2000
50th anniversary; operations restructured into head office and integrated logistics center; Masahiko Yamada became CEO.
- 1999
Integrated logistics center began full operation.
- 1998
Integrated logistics center completed; Hatsuratsu Learning Club began nationwide expansion.
- 1997
Company-wide information system began operation; internet homepage opened.
- 1996
Established Nishi-Ogikubo branch; relocated editorial headquarters.
Products and positioning
A long-established Japanese publisher of elementary-school educational materials, combining printed tests and drills with teaching tools and licensed-character supplies.
School tests
A Test / EX Test / S Test / Power-Up Test
Drills
Kurikaeshi Kanji Drill / Kurikaeshi Keisan Drill
Drills
Kaki-komi Kanji Super Skill / Kaki-komi Keisan Super Skill
Practice notebooks
Kanji/Calculation Practice Notebooks
Practice notebooks
Penmanship Notebook
Reference materials
Social Studies Reference Collection
Workbooks
Music Workbook
Teaching tools
Sewing Set
Teaching tools
Calligraphy Set
Teaching tools
Drawing Set
Teaching tools
Arithmetic Set
Teaching materials
Home Economics Materials
Educational books
Series 'Hon no Chikara'
Dictionaries
Example-based Elementary Japanese Dictionary / Kanji Dictionary
Sources6 sources
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