Nagano, Japan

Naruhisa Nagata

This inventor holds 10 USPTO granted patents and 3 published patent applications. Top assignees: Fuji Electric Co., Ltd., Fuji Electric (Malaysia) Sdn, Bhd., Fuji Electric Device Technology Co., Ltd.. Active years: 2008-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Naruhisa Nagata. Retrieved from https://idiyas.com/inventor/naruhisa-nagata

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

USPTO Granted Patents = 10 

% Patents Active = 40.0

Average Co-Inventor Count = 1.3

ph-index = 2

Forward Citations = 11(Granted Patents)


Location History:

  • Matsumoto, JP (2008 - 2014)
  • Kedah Darul Aman, MY (2014 - 2015)
  • Nagano, JP (2012 - 2018)

Company Filing History:


Years Active: 2008-2018

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10 patents (USPTO):Explore Patents

Title: Naruhisa Nagata: Innovator in Magnetic Recording Technology

Introduction

Naruhisa Nagata is a prominent inventor based in Nagano, Japan, known for his significant contributions to the field of magnetic recording technology. With a total of 10 patents to his name, he has developed innovative solutions that enhance the performance and durability of magnetic recording media.

Latest Patents

Among his latest patents, Nagata has developed a protective layer for a magnetic recording medium and a method of manufacturing the same. This method involves creating a magnetic recording medium by providing a substrate, forming a magnetic layer on the substrate, applying filtered cathodic vacuum arc (FCVA) deposition to create a film on the magnetic layer, and performing nitridation on the film formed by the FCVA deposition. Another notable patent includes a magnetic recording medium that features an amorphous carbon protective film. This medium consists of a substrate, a metal film layer on the substrate, a protective film on the metal film layer, and a lubricant film on the protective film's surface. The protective film is made of amorphous carbon containing fluorine and nitrogen in its surface region, while a deeper region is substantially free from these elements. This invention achieves a reduction in film thickness, improved durability, corrosion resistance, and enhanced bonding strength of the protective film to the lubricating film.

Career Highlights

Naruhisa Nagata has worked with notable companies such as Fuji Electric Co., Ltd. and Fuji Electric Device Technology Co., Ltd. His work in these organizations has allowed him to refine his expertise in magnetic recording technologies and contribute to advancements in the field.

Collaborations

Throughout his career, Nagata has collaborated with talented individuals, including Ryoji Kobayashi and Masaki Miyazato. These collaborations have fostered innovation and have been instrumental in the development of his patented technologies.

Conclusion

Naruhisa Nagata's contributions to magnetic recording technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in magnetic recording media, 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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