Portrait of Masato Sagawa
Photo: Christina.h.chenSource · CC BY-SA 4.0
Energy & Climate

Masato Sagawa

Neodymium-iron-boron permanent magnet

JapanEvidence: high confidenceChecked July 2026

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Who is Masato Sagawa?

Masato Sagawa is an inventor associated with Japan. Their documented work in energy & climate includes Neodymium-iron-boron permanent magnet, the contribution at the center of this evidence-backed profile.

Masato Sagawa developed the neodymium-iron-boron permanent magnet, combining neodymium, iron and boron through a sintering process. Its exceptionally strong field enabled compact motors, hard drives and other high-performance hardware, making it important to computing, medical technology and lower-carbon energy systems.

Known forNeodymium-iron-boron permanent magnet
FieldEnergy & Climate
Associated withJapan
Evidence reviewed2 sources
01

What did Masato Sagawa invent?

Developed the neodymium-iron-boron permanent magnet using a sintered boron-containing crystal structure.

02

What did Masato Sagawa accomplish?

The EPO made Sagawa its 2024 Non-EPO Countries winner and describes the magnets as crucial to a wide range of high-tech applications.

03

What is known about Masato Sagawa today?

The EPO's dated 9 July 2024 winners announcement names Sagawa as the 2024 Non-EPO Countries award recipient, positive living evidence.

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