Saitama, Japan

Kazuhiro Yoshikawa

This inventor holds 3 USPTO granted patents and 1 EPO patent. Top assignee: Mitsui Minings & Melting Co., Ltd.. Active years: 2016-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuhiro Yoshikawa. Retrieved from https://idiyas.com/inventor/kazuhiro-yoshikawa-tpj4hats

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

Calculating rank

% Patents Active = 33.3


Average Co-Inventor Count = 2.0

ph-index = 1


Location History:

  • Ageo, JP (2017)
  • Saitama, JP (2016 - 2019)

Company Filing History:


Years Active: 2016-2019

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3 patents (USPTO):Explore Patents

Title: Kazuhiro Yoshikawa: Innovator in Copper Foil Technology

Introduction

Kazuhiro Yoshikawa is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of copper foil technology, holding a total of 3 patents. His work focuses on improving the performance and manufacturing processes of copper foils used in various applications.

Latest Patents

Yoshikawa's latest patents include innovative solutions such as a copper foil provided with a carrier foil, a manufacturing method for this copper foil, and a copper clad laminate designed for laser drilling. The objective of his inventions is to enhance the laser drilling performance of copper clad laminates, particularly those with a black-oxide treated surface. By employing a copper foil with a specific layer structure, which includes metal element-containing particles, he has achieved a significant improvement in the quality of the laser drilled surface.

Another notable patent involves an electro-deposited copper-alloy foil that excels in infrared laser processability. This foil is designed to ensure a uniform etching rate along its thickness, achieved through a specific composition of tin content ranging from 8% to 25% by mass. The crystal structure of the foil is characterized by columnar grains that enhance its performance.

Career Highlights

Kazuhiro Yoshikawa is associated with Mitsui Mining & Smelting Co., Ltd., where he continues to develop and refine his innovative technologies. His work has positioned him as a key figure in the advancement of materials used in electronic applications.

Collaborations

Yoshikawa collaborates with esteemed colleagues such as Mitsuyoshi Matsuda and Joji Fujii, contributing to a dynamic environment of innovation and research.

Conclusion

Kazuhiro Yoshikawa's contributions to copper foil technology demonstrate his commitment to innovation and excellence in the field. His patents reflect a deep understanding of material science and engineering, paving the way for advancements in electronic manufacturing.

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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