Fukaya, Japan

Masatoki Tokunaga

This inventor holds 2 USPTO granted patents. Top assignee: Hitachi Metals, Ltd.. Active years: 1990-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masatoki Tokunaga. Retrieved from https://idiyas.com/inventor/masatoki-tokunaga

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 2

Forward Citations = 21(Granted Patents)


Company Filing History:


Years Active: 1990-1992

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2 patents (USPTO):Explore Patents

Title: Innovations by Masatoki Tokunaga

Introduction

Masatoki Tokunaga is a notable inventor based in Fukaya, Japan. He has made significant contributions to the field of magnet technology, holding 2 patents that showcase his expertise and innovative spirit.

Latest Patents

His latest patents include the development of a magnetically anisotropic bond magnet and a magnetic powder for the magnet. These inventions focus on a process for producing magnetically anisotropic powder that features 'flattened' crystal grains of an R-TM-B-M system alloy. The process involves plastically deforming a green compact of flakes formed by rapidly quenching the alloy melt, followed by crushing the plastically deformed body. In this alloy system, R represents at least one of the rare earth elements, including Y, while TM is Fe or a part of which has been substituted with Co. B stands for boron, and M is an additive selected from Si, Al, Nb, Zr, P, and C.

Career Highlights

Masatoki Tokunaga is currently employed at Hitachi Metals, Ltd., where he continues to push the boundaries of magnet technology. His work has been instrumental in advancing the understanding and application of magnetically anisotropic materials.

Collaborations

He has collaborated with notable coworkers, including Yasuto Nozawa and Katsunori Iwasaki, contributing to a dynamic and innovative work environment.

Conclusion

Masatoki Tokunaga's contributions to the field of magnet technology through his patents and work at Hitachi Metals, Ltd. highlight his role as a significant inventor in this domain. His innovative approaches continue to influence the industry and pave the way for future advancements.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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