Kobe, Japan

Makoto Tsujinaka

This inventor holds 3 USPTO granted patents and 1 EPO patent. Top assignee: Kawasaki Jukogyo Kabushiki Kaisha. Active years: 2025-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Makoto Tsujinaka. Retrieved from https://idiyas.com/inventor/makoto-tsujinaka

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


% Patents Active = 66.7

 

Average Co-Inventor Count = 5.5

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2025-2026

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3 patents (USPTO):Explore Patents

Title: The Innovations of Makoto Tsujinaka

Introduction

Makoto Tsujinaka is a prominent inventor based in Kobe, Japan. He has made significant contributions to the field of friction stir welding, holding 3 patents that showcase his innovative approach to this technology. His work has implications for various industries, particularly in manufacturing and materials engineering.

Latest Patents

Tsujinaka's latest patents include a "Method for controlling friction stir welding device" and a "friction stir welding device." The first patent describes a process where a shoulder member contacts a surface while a pin member is brought into contact to specify movement and displacement amounts. This method ensures precise control during the welding process, enhancing the quality of the weld. The second patent outlines a control method for a friction stir tool, which regulates the drive electric current based on the comparison of set and actual pressurizing forces during the tool's operation. This innovation aims to improve the efficiency and effectiveness of friction stir welding.

Career Highlights

Makoto Tsujinaka is associated with Kawasaki Jukogyo Kabushiki Kaisha, a leading company in the manufacturing sector. His role at Kawasaki has allowed him to develop and refine his inventions, contributing to advancements in welding technology. His expertise in friction stir welding has positioned him as a key figure in this specialized field.

Collaborations

Tsujinaka has worked alongside notable colleagues such as Masahiro Miyake and Tadahiro Edagawa. Their collaborative efforts have furthered research and development in welding technologies, leading to innovative solutions and improved processes.

Conclusion

Makoto Tsujinaka's contributions to friction stir welding through his patents and work at Kawasaki Jukogyo Kabushiki Kaisha highlight his role as an influential inventor. His innovations continue to impact the manufacturing industry, showcasing the importance of research and development in advancing 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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