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Mayekawa Houonkai Foundation

A Japanese public-interest incorporated foundation established by the founder of Mayekawa Manufacturing to fund academic research, community development, and welfare programs.

Last updated September 29, 2026

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Overview

The Mayekawa Houonkai Foundation (公益財団法人前川報恩会) is a Japanese public-interest incorporated foundation headquartered in Koto-ku, Tokyo. It was established on December 22, 1967, by Kisaku Mayekawa, the founder of Mayekawa Manufacturing Co., Ltd. (株式会社前川製作所), who contributed 200 million yen of his personal wealth as the founding fund. The foundation operates with a basic endowment of approximately 3.7 billion yen, using the income generated from these assets to finance its grant-making activities each year. The foundation's mission is to contribute to the advancement of social welfare by supporting research in psychiatry and the medical study of physical disabilities, as well as broader academic, community, and welfare initiatives. Its grant programs are organized into three main categories: academic research grants, regional development grants, and welfare grants. The academic research grants support natural science research that addresses environmental, energy, and food issues, as well as research aimed at understanding social pathologies arising from disharmony among environment, society, organizations, and individuals. The welfare grants assist welfare facilities that support people with physical and mental disabilities. The regional development grants support community-driven projects focused on resource and cultural preservation. Over the decades, the foundation has been led by successive chairpersons who have carried forward the founder's vision: Masao Mayekawa from 1986, Tadao Miyano from 2013, and Tadashi Mayekawa from 2015. The current chairperson is Satoshi Shinozaki. In response to Japan's reform of the public-interest corporation system, the foundation received approval from the Prime Minister to transition to a general incorporated foundation on October 1, 2012, and subsequently obtained public-interest certification on April 1, 2016, becoming a public-interest incorporated foundation. The foundation is jointly supervised by the Disability Health and Welfare Division of the Ministry of Health, Labour and Welfare and the Academic Research Grant Division of the Ministry of Education, Culture, Sports, Science and Technology. It continues to solicit applications for its grants annually, with application periods typically running in the summer months. The foundation is located at 3-10-7 Botan, Koto-ku, Tokyo, and maintains a website at mayekawa.org.

History

The Mayekawa Houonkai Foundation was established on December 22, 1967, by Kisaku Mayekawa, the founder of Mayekawa Manufacturing Co., Ltd. He contributed 200 million yen of his personal wealth as the founding fund. The foundation was created with the aim of contributing to social welfare by supporting research in psychiatry and the medical study of physical disabilities, as well as broader academic and welfare initiatives. From its inception, the foundation operated as a foundation (財団法人) under the joint supervision of the Ministry of Health, Labour and Welfare and the Ministry of Education, Culture, Sports, Science and Technology. Its basic endowment grew to approximately 3.7 billion yen, and the income from these assets has been used to fund grants every year. Leadership of the foundation has been passed down through generations connected to its founder. Masao Mayekawa served as chairperson from 1986, followed by Tadao Miyano from 2013, and Tadashi Mayekawa from 2015. The current chairperson is Satoshi Shinozaki. In response to the reform of Japan's public-interest corporation system, the foundation obtained approval from the Prime Minister to transition to a general incorporated foundation (一般財団法人) on October 1, 2012. Subsequently, on April 1, 2016, it received public-interest certification (公益認定) and became a public-interest incorporated foundation (公益財団法人). Throughout its history, the foundation has continued to carry out its grant-making activities in three main areas: academic research grants, regional development grants, and welfare grants. It annually solicits applications for these programs, with application periods typically in the summer. The foundation remains active and is headquartered in Koto-ku, Tokyo.

  • Foundation established by Kisaku Mayekawa with a 200 million yen fund.

  • Masao Mayekawa becomes chairperson.

  • Transitioned to a general incorporated foundation with approval from the Prime Minister.

  • Tadao Miyano becomes chairperson.

  • Tadashi Mayekawa becomes chairperson.

  • Received public-interest certification and became a public-interest incorporated foundation.

Products and positioning

A philanthropic foundation dedicated to advancing social welfare through grants for medical research, community development, and disability support.

  • Academic Research Grant

    Grants for natural science research related to environmental, energy, and food issues, as well as research on social pathologies.

  • Regional Development Grant

    Grants for community-driven projects focused on resource and cultural preservation.

  • Welfare Grant

    Grants for welfare facilities supporting people with physical and mental disabilities.

Sources6 sources

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