This inventor holds 2 USPTO granted patents. Top assignee: Hitachi Metals, Ltd.. Active years: 2002-2003.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2002-2003
Title: Hiroshi Okajima: Inventor in Magnetic Materials
Introduction
Hiroshi Okajima is an inventor associated with Saitama, Japan, and Hitachi Metals, Ltd. His work includes magnetic materials and bonded magnets. He is credited with 2 patents.
Latest Patents
“Resin-bonded magnet, its product, and ferrite magnet powder and compound used therefor” describes a resin-bonded magnet combining rare-earth iron-nitrogen magnetic powder, ferrite magnetic powder, and a binder. The patent also addresses ferrite powder compositions and preferred anisotropic granulated or sintered forms.
“Nitride type, rare earth magnet materials and bonded magnets formed therefrom” concerns a nitride-based rare-earth magnet material. Its specified composition and fine-grained hard magnetic phase are intended to support magnetic performance, while limiting the proportion of alpha iron.
Career Highlights
Okajima’s listed inventions focus on developing magnetic materials and bonded-magnet compositions. The patent descriptions cover both the constituent powders and the resulting magnet products.
Collaborations
Okajima’s listed coworkers include Masahiro Tobise and Mikio Shindo. His work is associated with Hitachi Metals, Ltd.
Conclusion
Hiroshi Okajima’s patent record highlights contributions to rare-earth and ferrite magnetic materials, particularly compositions designed for bonded magnets.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile