Laureates of the Japan Prize


Masato Sagawa, Dr. Eng.

2012 Japan Prize Laureate

Environment, Energy and Infrastructure
Developing the world's highest performing Nd-Fe-B type permanent magnet and contributing to energy conservation
Commemorative Lecture
How the World's Strongest "Neodymium Magnet" Came to Exist
Nationality: Japan
Date of Birth: August 3, 1943
Academic Degrees:
1966 B.A. from Kobe University

Dr. Eng. from Tohoku University

Professional Career:
1972-1982 Fujitsu Ltd.
1982-1988 Sumitomo Special Metals Co., Ltd.
1988 - President, Intermetallics Co., Ltd.
Major Publications:
  1. M. Sagawa, S. Fujimura, N. Togawa, H. Yamamoto and Y. Matsuura, "New Material for Permanent Magnets on a Base of Nd and Fe", J.Appl.Phys.55, pp.2083-2087, 1984.
  2. M. Sagawa, S. Fujimura, H. Yamamoto and Y. Matsuura and K. Hiraga, "Permanent Magnet Materials Based on the Rare-Earth-Iron-Boron Tetragonal Compounds", IEEE Trans.Magn.MAG-20, pp.1584-1589, 1984.
  3. M. Sagawa, S. Hirosawa, Y. Otani, H. Miyajima and S. Chikazumi, "Temperature Dependence of the Coercivity of Sintered R17Fe83-xBx Magnets(R=Pr, Nd)", J. Magn. Magn. Mat.70, pp.316-318, 1987.
  4. M. Sagawa, S. Hirosawa, K. Tokuhara, H. Yamamoto and S. Fujimura, "Dependence of Coercivity on the Anisotropy Field in the Nd-Fe-B type Sintered Magnets", J. Appl. Phys.61, pp.3559-3561, 1987.
  5. M. Sagawa, P. Tenaud, F. Vial and K. Hiraga, "High Coercivity Nd-Fe-B Sintered Magnet Containing Vanadium with New Microstructure", IEEE Trans. Magn. 26, pp.1957-1959, 1990.
Major Honors:
  • Osaka Prize (1984)
  • Minister of Science and Technology Agency Award (1985)
  • American Physical Society International Prize for New Materials (1986)
  • Asahi Prize (1990)
  • Japan Magnetics Society Award (1991)
  • Okochi Memorial Prize (1993)
  • Acta Metallurgica J. Herbert Hollomon Award (1998)
  • Honda-kinen Prize (2003)
  • Kato-kinen Prize (2006)

( At the time of receipt of the Prize )

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