Energy & Climate

Masato Sagawa

Neodymium-iron-boron permanent magnet

JapanEvidence: high confidenceChecked July 2026

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.

01

What Masato did

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

02

Why it matters

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

Living-status check

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