Fukuoka, Japan

Naohisa Sawai

This inventor holds 2 USPTO granted patents and 1 published patent application and 3 EPO patents. Top assignees: Kumamoto University, Kuroki Kogosyo Co., Ltd., Kuroki Kogyosho Co., Ltd. Active years: 2013-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Naohisa Sawai. Retrieved from https://idiyas.com/inventor/naohisa-sawai

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

USPTO Granted Patents = 2 

% Patents Active = 100.0


Average Co-Inventor Count = 5.5

ph-index = 2

Forward Citations = 5(Granted Patents)


Company Filing History:


Years Active: 2013-2015

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2 patents (USPTO):Explore Patents

Title: Naohisa Sawai: Innovator in Welding Technology

Introduction

Naohisa Sawai is a prominent inventor based in Fukuoka, Japan. He has made significant contributions to the field of welding technology, particularly in the integration of metallic glass and crystalline metals. With a total of 2 patents, his work showcases innovative methods that enhance the efficiency and reliability of welding processes.

Latest Patents

Sawai's latest patents include a method of welding that applies energy to the interface where a metallic glass and a crystalline metal come into contact. This method involves heating and melting the metallic glass to form a molten layer, allowing for a strong bond between the two materials. His second patent focuses on a high-energy beam welding technique that shifts the scan area from the butt interface toward the metallic glass side. This approach ensures that the composition of the melt zone falls within the required range for glass phase formation, thereby improving the quality of the weld.

Career Highlights

Throughout his career, Naohisa Sawai has worked with notable institutions such as Kumamoto University and Kuroki Kogosyo Co., Ltd. His expertise in welding technology has positioned him as a key figure in advancing the applications of metallic glass in various industries.

Collaborations

Sawai has collaborated with several professionals in his field, including Yoshihito Kawamura and Jonghyun Kim. These collaborations have further enriched his research and development efforts, leading to innovative solutions in welding technology.

Conclusion

Naohisa Sawai's contributions to welding technology through his patents and collaborations highlight his role as an influential inventor. His innovative methods continue to shape the future of welding processes, making significant strides in the integration of advanced materials.

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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