Haruhiro Komura

Title: Haruhiro Komura and Permanent Magnet Manufacturing

Introduction

Haruhiro Komura is an inventor associated with Kitasaku-gun, Japan, and MinebeaMitsumi Inc. His work includes methods for manufacturing and magnetizing permanent magnets. The supplied information lists 2 patents.

Latest Patents

Komura’s listed patents address two stages of permanent magnet production: forming and sintering a rare-earth iron-based ring magnet, and magnetizing a permanent magnet through controlled heating.

“Rare-earth iron-based ring magnet and method for manufacturing same” describes a process that forms a green body from rare-earth iron-based magnet powder and a compound. The body is placed in a composite mold and degreased under reduced pressure using spark plasma sintering equipment, with current and pressure applied. It is then sintered through further energization and pressure to produce the ring magnet.

“Manufacturing method for permanent magnet” describes magnetizing an object using a field magnet unit and a heating unit. The object is heated to at least its Curie point, while remaining below the Curie point of the magnetizing magnets. Its temperature is then lowered below its own Curie point, and the magnets apply a magnetic field to magnetize it.

Career Highlights

The listed inventions focus on manufacturing processes that combine heat, pressure, and magnetic fields. One patent concerns producing a rare-earth iron-based ring magnet through forming, degreasing, and sintering. The other concerns controlling temperature during magnetization.

Collaborations

The supplied information identifies Kentaro Hanashima as Komura’s coworker. It also associates Komura with MinebeaMitsumi Inc.

Conclusion

Haruhiro Komura’s listed patent work centers on practical methods for producing and magnetizing permanent magnets, including rare-earth iron-based ring magnets.