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For the Inventor, By the Inventor

Kumagaya, Japan

Motohisa Hasegawa

This inventor holds 3 USPTO granted patents. Top assignee: Hitachi Metals, Ltd.. Active years: 1995-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Motohisa Hasegawa. Retrieved from https://idiyas.com/inventor/motohisa-hasegawa

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

Calculating rank
USPTO Granted Patents = 3

% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 3

Forward Citations = 33(Granted Patents)


Company Filing History:

goldMedal3 out of 2,333 
 
Hitachi Metals, Ltd.
 patents

Years Active: 1995-2001

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3 patents (USPTO):Explore Patents
1. 6254694 - R-T-B-based, permanent magnet, method for producing same, and permanent magnet-type motor and actuator comprising same (2001-07-03),
2. 5876518 - R-T-B-based, permanent magnet, method for producing same, and permanent (1999-03-02),
3. 5449417 - R-Fe-B magnet alloy, isotropic bonded magnet and method of producing same (1995-09-12),

Title: Motohisa Hasegawa: Innovator in Permanent Magnet Technology

Introduction

Motohisa Hasegawa is a prominent inventor based in Kumagaya, Japan. He has made significant contributions to the field of permanent magnet technology, holding a total of 3 patents. His work focuses on improving the performance and durability of permanent magnets, which are essential components in various modern technologies.

Latest Patents

Hasegawa's latest patents include innovations such as an R-T-B-based permanent magnet and a method for producing the same. This technology enhances the resistance of magnetic properties to deterioration caused by working, electroplating, and other factors. The permanent magnet-type motor and actuator developed by Hasegawa also feature improved longevity and performance. The R-T-B-based permanent magnet consists of rare earth elements and iron, with a corrosion-resistant film layer that significantly enhances its durability.

Career Highlights

Motohisa Hasegawa has built a successful career at Hitachi Metals, Ltd., where he has been instrumental in advancing magnet technology. His expertise in material science and engineering has led to breakthroughs that benefit various industries, including electronics and automotive sectors.

Collaborations

Hasegawa has collaborated with notable colleagues such as Takashi Sasaki and Motoharu Shimizu. These partnerships have fostered innovation and contributed to the development of cutting-edge technologies in the field of permanent magnets.

Conclusion

Motohisa Hasegawa's contributions to permanent magnet technology exemplify the impact of innovative thinking in engineering. His patents and collaborations continue to influence advancements in various applications, showcasing the importance of research and development in this field.

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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