Osaka, Japan

Tetsuji Hayakawa

This inventor holds 3 USPTO granted patents. Top assignee: Sumitomo Special Metals Co., Ltd.. Active years: 1989-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tetsuji Hayakawa. Retrieved from https://idiyas.com/inventor/tetsuji-hayakawa

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 = 3

Forward Citations = 64(Granted Patents)


Company Filing History:


Years Active: 1989-1994

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3 patents (USPTO):Explore Patents

Title: Tetsuji Hayakawa: Innovator in Corrosion-Resistant Magnets

Introduction

Tetsuji Hayakawa is a notable inventor based in Osaka, Japan. He has made significant contributions to the field of magnet technology, particularly in developing methods to enhance the corrosion resistance of permanent magnets. With a total of 3 patents to his name, Hayakawa's work has implications for various industrial applications.

Latest Patents

Hayakawa's latest patents focus on a process for producing magnets with improved corrosion resistance. Specifically, he has developed a method for creating Fe-B-R type permanent magnets by forming an anticorrosive coating film layer on a Fe-B-R base permanent magnet material body through vapor deposition. This innovative approach significantly enhances the corrosion resistance of the magnets. The anticorrosive thin film can be composed of metals, oxides, nitrides, carbides, borides, silicides, or composite compositions thereof. Additionally, techniques such as blasting, shot peening, heat treatment for forming an interdiffusion layer, and resin impregnation may be applied to further improve the properties of the magnets.

Career Highlights

Throughout his career, Tetsuji Hayakawa has worked with prominent companies in the field, including Sumitomo Special Metals Co., Ltd. His experience in these organizations has allowed him to refine his expertise in magnet technology and contribute to advancements in the industry.

Collaborations

Hayakawa has collaborated with notable colleagues such as Takaki Hamada and Yutaka Matsuura. These partnerships have likely facilitated the exchange of ideas and innovations, further enhancing the development of corrosion-resistant magnets.

Conclusion

Tetsuji Hayakawa's contributions to the field of magnet technology, particularly in improving corrosion resistance, highlight his innovative spirit and dedication to advancing industrial applications. His patents and collaborations reflect a commitment to excellence in his work.

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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