Niihama, Japan

Yoshiyasu Takenaka

This inventor holds 1 USPTO granted patent. Top assignee: Sumitomo Metal Mining Company, Ltd.. Active years: 1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiyasu Takenaka. Retrieved from https://idiyas.com/inventor/yoshiyasu-takenaka

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 = 4.0

ph-index = 1

Forward Citations = 10(Granted Patents)


Company Filing History:


Years Active: 1993

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1 patent (USPTO):Explore Patents

Title: Innovations of Yoshiyasu Takenaka

Introduction

Yoshiyasu Takenaka is a notable inventor based in Niihama, Japan. He has made significant contributions to the field of materials science, particularly in the manufacturing of advanced substrates. His innovative approach has led to the development of a unique method for creating copper-polyimide substrates.

Latest Patents

Yoshiyasu Takenaka holds a patent for a "Method of manufacturing copper-polyimide substrate." This method involves several steps, including hydrophilicating the surface of a polyimide film, applying a catalyst, and subjecting the film to electroless plating. The process is further enhanced by heat treatment in an inert atmosphere, followed by additional copper plating techniques. This innovative method ensures high-quality substrate production, which is essential for various electronic applications.

Career Highlights

Yoshiyasu Takenaka is associated with Sumitomo Metal Mining Company, Ltd., where he has been instrumental in advancing substrate manufacturing technologies. His expertise in materials science has positioned him as a key figure in the industry, contributing to the development of cutting-edge solutions.

Collaborations

Yoshiyasu has collaborated with notable colleagues, including Yukihiro Tamiya and Noriyuki Saeki. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Yoshiyasu Takenaka's contributions to the field of substrate manufacturing highlight his innovative spirit and dedication to advancing technology. His patented method for producing copper-polyimide substrates represents a significant achievement 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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