Saitama, Japan

Hiroaki Nakahara

This inventor holds 1 USPTO granted patent. Top assignee: Mitsui Minings & Melting Co., Ltd.. Active years: 2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroaki Nakahara. Retrieved from https://idiyas.com/inventor/hiroaki-nakahara-36azlbj4

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 5.0

ph-index = 1


Company Filing History:


Years Active: 2019

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1 patent (USPTO):Explore Patents

Title: Hiroaki Nakahara: Innovator in Copper Foil Technology

Introduction

Hiroaki Nakahara is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of materials science, particularly in the development of copper foil for non-aqueous secondary batteries. His innovative approach has led to advancements that enhance the performance and cost-effectiveness of battery components.

Latest Patents

Nakahara holds a patent for a copper foil, negative electrode current collector, and negative electrode material for non-aqueous secondary batteries. The objective of this invention is to provide a copper foil that is both inexpensive and possesses sufficient tensile strength even after heat treatment. The copper foil includes zinc in a content range of 0.02% by mass to 2.7% by mass of the total mass of the entire copper foil. The design features external layers and an internal layer, where the internal layer includes copper as a main element and contains 100 ppm or more of a mixture of small amount-elements selected from carbon, sulfur, chlorine, and nitrogen. Additionally, it includes zinc at 10% or more of the total mass of zinc in the entire copper foil.

Career Highlights

Nakahara is associated with Mitsui Mining & Smelting Co., Ltd., where he has been instrumental in advancing the company's research and development efforts in battery materials. His work has not only contributed to the company's portfolio but has also positioned it as a leader in innovative battery technologies.

Collaborations

Throughout his career, Nakahara has collaborated with esteemed colleagues such as Koichi Miyake and Tomoyuki Maeda. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of cutting-edge technologies.

Conclusion

Hiroaki Nakahara's contributions to the field of copper foil technology exemplify the impact of innovation in the battery industry. His patent reflects a commitment to enhancing the performance of energy storage solutions, making him a significant figure in materials science.

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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