Tokyo, Japan

Kiyohisa Yamauchi

This inventor holds 1 USPTO granted patent and 2 published patent applications. Top assignee: Fdk Corporation. Active years: 2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kiyohisa Yamauchi. Retrieved from https://idiyas.com/inventor/kiyohisa-yamauchi

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

Calculating rank
USPTO Granted Patents = 1 

% Patents Active = 100.0

Average Co-Inventor Count = 5.0

ph-index = 1


Company Filing History:


Years Active: 2017

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1 patent (USPTO):Explore Patents

Title: Kiyohisa Yamauchi: Innovator in Multilayer Inductor Technology

Introduction

Kiyohisa Yamauchi is a prominent inventor based in Tokyo, Japan. He is known for his innovative contributions to the field of electrical engineering, particularly in the development of multilayer inductors. His work has significantly impacted the efficiency of power converters.

Latest Patents

Yamauchi holds a patent for a multilayer inductor that enhances DC superposition characteristics. This invention utilizes a permanent magnet that emits a bias magnetic flux, combined with a low-loss material as a magnetic body. The design includes multiple laminated electrically insulating magnetic layers and conductive patterns that form a spiral coil. This configuration improves converter conversion efficiency by optimizing the magnetic flux interaction.

Career Highlights

Yamauchi's career is marked by his role at FDK Corporation, where he has been instrumental in advancing inductor technology. His innovative approach has led to the development of products that meet the growing demands for efficient power management in various applications.

Collaborations

Throughout his career, Yamauchi has collaborated with notable colleagues, including Daisuke Matsubayashi and Juji Kato. These partnerships have fostered a creative environment that encourages the exchange of ideas and technological advancements.

Conclusion

Kiyohisa Yamauchi's contributions to multilayer inductor technology exemplify his commitment to innovation and efficiency in electrical engineering. His work continues 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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