Nagakute, Japan

Seishi Utsuno

This inventor holds 5 USPTO granted patents. Top assignees: Denso Corporation, Kabushiki Kaisha Toyota Chuo Kenkyusho, Toyota Jidosha Kabushiki Kaisha. Active years: 2015-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seishi Utsuno. Retrieved from https://idiyas.com/inventor/seishi-utsuno

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

Calculating rank

% Patents Active = 80.0

Average Co-Inventor Count = 2.9

ph-index = 1

Forward Citations = 219(Granted Patents)


Company Filing History:


Years Active: 2015-2023

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5 patents (USPTO):Explore Patents

Title: Seishi Utsuno: Innovator in Magnetic Core Technology

Introduction

Seishi Utsuno is a prominent inventor based in Nagakute, Japan. He has made significant contributions to the field of magnetic core technology, holding a total of 5 patents. His work focuses on developing advanced materials that enhance the efficiency of magnetic cores, which are essential components in various electrical devices.

Latest Patents

Utsuno's latest patents include innovations such as a compressed powder magnetic core and a powder for magnetic cores, along with their production methods. One of his notable inventions is a dust core designed to significantly reduce iron loss. This dust core comprises soft magnetic particles made of pure iron or an iron alloy, with a grain boundary layer existing between adjacent particles. The grain boundary layer features a compound layer that includes MFeSiO, where M represents one or more types of metal elements serving as divalent cations. The dust core is produced by annealing a compact obtained through compression-molding a powder for magnetic cores. The resulting dust core exhibits high specific resistance, effectively reducing both eddy-current loss and hysteresis loss.

Career Highlights

Throughout his career, Seishi Utsuno has worked with notable companies such as Denso Corporation and Toyota Motor Corporation. His experience in these leading organizations has allowed him to refine his expertise in magnetic materials and their applications in the automotive and electronics industries.

Collaborations

Utsuno has collaborated with esteemed colleagues, including Jung Hwan Hwang and Ken Matsubara. These partnerships have contributed to the advancement of his research and the successful development of innovative magnetic core technologies.

Conclusion

Seishi Utsuno's contributions to magnetic core technology have established him as a key figure in the field. His innovative patents and collaborations reflect his commitment to enhancing the efficiency of magnetic materials. His work continues to influence advancements in various industries, showcasing the importance of innovation in technology.

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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