Ibaraki, Japan

Tomota Nagaura

This inventor holds 9 USPTO granted patents and 3 published patent applications and 2 EPO patents. Top assignees: Jx Nippon Mining Metals Corporation, Axis Patent International. Active years: 2015-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tomota Nagaura. Retrieved from https://idiyas.com/inventor/tomota-nagaura

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

Calculating rank
USPTO Granted Patents = 9 

% Patents Active = 77.8

 

Average Co-Inventor Count = 1.9

ph-index = 2

Forward Citations = 18(Granted Patents)


Location History:

  • Hitachi, JP (2015)
  • Ibaraki, JP (2017 - 2019)

Company Filing History:


Years Active: 2015-2019

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9 patents (USPTO):Explore Patents

Title: **The Innovative Mind of Tomota Nagaura: A Pioneer in Copper Sulfate Technologies**

Introduction

Tomota Nagaura, an esteemed inventor based in Ibaraki, Japan, has made significant contributions to the field of semiconductor technologies and plating solutions. With an impressive portfolio of nine patents, his work has paved the way for advancements in electronic apparatus manufacturing.

Latest Patents

Nagaura's latest patents include innovative methods and products, such as the production of copper sulfate and copper sulfate solutions, essential for various industrial applications. Additionally, he has developed methods for producing semiconductor circuit boards and electronic apparatus that incorporate copper sulfate with a specific Fe concentration of 0.08 ppm by mass or less. One of his notable contributions is the carrier-attached copper foil, which features an intermediate layer and an ultra-thin copper layer designed for enhanced circuit formability. This ultra-thin copper layer has an average grain size of 1.05 to 6.5 µm and a ten-point average roughness Rz ranging from 0.1 to 2.0 µm, enabling improved performance in printed-wiring board manufacturing.

Career Highlights

Throughout his career, Nagaura has worked with prestigious organizations, notably JX Nippon Mining & Metals Corporation. His expertise in developing technologies that enhance the production and efficiency of electronic devices has positioned him as a leader in his field. His innovative approaches have garnered attention in both industry and academia, solidifying his reputation as a prominent inventor.

Collaborations

Tomota Nagaura has collaborated with notable professionals in the industry, including Terumasa Moriyama and Michiya Kohiki, a talented female inventor. These collaborations have fostered an environment of creativity and innovation, resulting in groundbreaking developments in their respective areas of expertise.

Conclusion

In conclusion, Tomota Nagaura's contributions to the field of copper sulfate technologies and semiconductor manufacturing exemplify the spirit of innovation. His extensive patent portfolio and collaborative efforts highlight his commitment to advancing technology. As industries continue to evolve, Nagaura's inventions will undoubtedly play a pivotal role in shaping the future of electronic devices and 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]
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