Company Profile

Date of establishmentApr.16, 2009
RepresentativeKenya YOKOYAMA
President and Chief Executive Officer
Head office5F Wakayagi Bldg.
2-20 Kandajimbocho, Chiyoda-ku, Tokyo
101-0051, JAPAN
Major Business AreaPublication of educational books and software

Our philosophy

Develop excellent education culture by supplying good books.

We believe education should be the one to develop children’s talent and ability, which takes them to each of their goals. That way never be single. There are various way of thinking, many kind of way of execution. When teachers will find his own way and do that, education culture would become more rich. SAKURA-SHA helps it by supplying books.

Increase cheerful & happy classrooms.

Sustainability is required for education. But it cannot be without brightness and fun. When teacher smiles, students are cheered up. When students smile, teacher is cheered up. When everybody is cheered up, classrooms are changed. For making classrooms cheerful all over the world, SAKURA-SHA provides books to contribute this aim.

Make bright future for children

Education builds future. If good education is not given, future society will be collapsed. If education has toughness, future will become tough and prosperous. Enrich education in classrooms as of now so that such a future comes true. SAKURA-SHA provides books for making future.

Our business

Provides educational books and digital materials.

- Practical books for skill-up of teaching.

(mainly for primary school teachers).

- Software for mathematics

Epoch-making tools to make students love maths… Interactive Mathematics.

- Education related books including home education.



Who is Kenya YOKOYAMA?


  • 1977 Graduated Faculty of Education, Chiba University
    Started work at primary school in Chiba-city, Japan
  • 1997 Established Educational software development laboratory K.K.
  • 1999 Won the award of excellence at the teacher’s workshop by education board of Chiba-city
  • 2001 Resigned from school to dedicate to creation of software named Interactive Mathematics.
  • 2009 Established SAKURA-SHA K.K.



- Software

  • SAKURA SANSU Interactive Mathematics

promotion video


Index & Count 1 to 5

Order of numbers (1 to 100)

Subtraction (11 to 18)

Learning game

- Books (Japanese)

  • over 120 titles

- Regular features on newspaper and magazine

  • over 10 serial titles

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