Tokyo, Japan

Haruhiko Yamaguchi

This inventor holds 5 USPTO granted patents. Top assignee: Tdk Corporation. Active years: 2006-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Haruhiko Yamaguchi. Retrieved from https://idiyas.com/inventor/haruhiko-yamaguchi-3w6db7z2

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

Calculating rank

% Patents Active = 40.0

Average Co-Inventor Count = 6.2

ph-index = 3

Forward Citations = 12(Granted Patents)


Company Filing History:


Years Active: 2006-2012

Loading Chart...
5 patents (USPTO):Explore Patents

Title: Haruhiko Yamaguchi: Innovator in Magnetic and Optical Technologies

Introduction

Haruhiko Yamaguchi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the fields of magnetic and optical technologies. With a total of 5 patents to his name, Yamaguchi has demonstrated his expertise and innovative spirit in various applications.

Latest Patents

Yamaguchi's latest patents include a method and apparatus for testing the characteristics of thin-film magnetic heads. This invention evaluates the performance of thin-film magnetic heads by measuring the magnetic field generated by each head in a bar containing multiple heads. Another notable patent is related to the production of optical recording mediums. This method involves forming a resin layer on a substrate and creating a center hole that passes through both the substrate and the resin layer. By employing a circular cut with a larger diameter than the center hole, Yamaguchi's method effectively prevents detachment of the resin layer and reduces manufacturing costs.

Career Highlights

Haruhiko Yamaguchi is currently associated with TDK Corporation, where he continues to push the boundaries of innovation. His work has been instrumental in advancing technologies that are crucial for modern data storage and retrieval systems.

Collaborations

Yamaguchi has collaborated with notable colleagues such as Junichi Ide and Mamoru Usami. Their combined efforts have contributed to the development of cutting-edge technologies in their respective fields.

Conclusion

Haruhiko Yamaguchi's contributions to magnetic and optical technologies highlight his role as a leading inventor. His innovative patents and collaborations reflect his commitment to advancing technology and improving manufacturing processes.

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]
Loading…