Masato Sagawa 佐川眞人 | |
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| Born | 3 August 1943 |
| Nationality | Japanese |
| Citizenship | Japan |
| Alma mater | Kobe University (B.A.) (M.S.) Tohoku University (Doctor Eng.) |
| Spouse | Hisako Sagawa 久子 |
| Awards | Asahi Prize (1990) Japan Prize (2012) Queen Elizabeth Prize for Engineering (2022) |
| Scientific career | |
| Fields | Metallurgy, Magnetic Materials, Sustainable energy |
Masato Sagawa (佐川眞人; born August 3, 1943, in Tokushima, Japan) is a Japanese scientist and entrepreneur, and the inventor of the sintered permanent neodymium magnet (NdFeB). Sagawa was awarded the Japan Prize and IEEE Medal for Environmental and Safety Technologies for his efforts.