Hitachinaka, Japan

Yasushi Nagayama

This inventor holds 1 USPTO granted patent. Top assignee: Victor Company of Japan, Limited. Active years: 1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasushi Nagayama. Retrieved from https://idiyas.com/inventor/yasushi-nagayama

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 = 1


Company Filing History:


Years Active: 1997

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1 patent (USPTO):Explore Patents

Title: Yasushi Nagayama: Innovator in Magnetic Recording Technology

Introduction

Yasushi Nagayama is a notable inventor based in Hitachinaka, Japan. He has made significant contributions to the field of magnetic recording technology. His innovative work has led to the development of a unique magnetic recording medium that enhances performance while maintaining durability.

Latest Patents

Nagayama holds a patent for a magnetic recording medium featuring a backcoat layer that contains carbon. This invention describes a magnetic recording medium with a total thickness of 12.5 µm. A magnetic layer is formed on one surface of a non-magnetic supporter, while a back coat layer, measuring 1.0 µm, is composed of solid powder and a binder on the opposite surface. The solid powder includes a mix of platelet inorganic powder and carbon black powder, with the carbon black powder constituting between 5 and 20 parts by weight when the platelet inorganic powder is 100 parts by weight. This design ensures sufficient mechanical strength and travel stability, preventing tape damage such as breakage and wrinkles.

Career Highlights

Nagayama is associated with the Victor Company of Japan, Limited, where he has been instrumental in advancing magnetic recording technologies. His work has not only contributed to the company's reputation but has also influenced the industry as a whole.

Collaborations

Throughout his career, Nagayama has collaborated with esteemed colleagues, including Osamu Kobayashi and Ikuo Matsumoto. These partnerships have fostered innovation and have been pivotal in the development of new technologies in the field.

Conclusion

Yasushi Nagayama's contributions to magnetic recording technology exemplify the impact of innovative thinking in engineering. His patent for a carbon-containing magnetic recording medium showcases his commitment to enhancing performance and durability in recording technologies.

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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