Toda, Japan

Hihumi Nagai

This inventor holds 3 USPTO granted patents. Top assignee: Nippon Mining Co., Ltd.. Active years: 1991-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hihumi Nagai. Retrieved from https://idiyas.com/inventor/hihumi-nagai

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 = 5.0

ph-index = 2

Forward Citations = 22(Granted Patents)


Company Filing History:


Years Active: 1991-1993

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3 patents (USPTO):Explore Patents

Title: Hihumi Nagai: Innovator in Magnetic Head Technology

Introduction

Hihumi Nagai is a prominent inventor based in Toda, Japan. He has made significant contributions to the field of magnetic head technology, holding a total of 3 patents. His work focuses on innovative materials and structures that enhance the performance of magnetic heads.

Latest Patents

Nagai's latest patents include a magnetic head comprising a laminated magnetic layer structure between a non-magnetic substrate. This design features a pair of non-magnetic substrates with a magnetic layer structure sandwiched in between. The magnetic layer structure consists of alternately laminated magnetic layers and intermediate insulating layers. The substrate material is expressed by a composition of Zn.sub.x M.sub.y Co.sub.2-x-y O.sub.2, where M is either Mn or Ni, and specific ranges for x and y are defined. Another patent details a non-magnetic substrate used for a magnetic head, emphasizing the same innovative composition and structure.

Career Highlights

Hihumi Nagai is currently employed at Nippon Mining Co., Ltd., where he continues to develop cutting-edge technologies in the field of magnetic materials. His expertise and innovative approach have positioned him as a key figure in his industry.

Collaborations

Nagai has collaborated with notable coworkers, including Eiji Itoh and Ryuichi Nagase. Their combined efforts have contributed to advancements in magnetic head technology.

Conclusion

Hihumi Nagai's work in magnetic head technology showcases his innovative spirit and dedication to advancing the field. His patents reflect a deep understanding of material science and engineering, making him a valuable contributor to the industry.

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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