Tokyo, Japan

Tomohisa Kumagai

This inventor holds 1 USPTO granted patent. Top assignee: Hitachi, Ltd.. Active years: 2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tomohisa Kumagai. Retrieved from https://idiyas.com/inventor/tomohisa-kumagai

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 = 8.0

ph-index = 1


Company Filing History:


Years Active: 2016

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1 patent (USPTO):Explore Patents

Title: Tomohisa Kumagai: Innovator in Data Authenticity Assurance

Introduction

Tomohisa Kumagai is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of data management and security. His innovative approach focuses on ensuring data authenticity through advanced technological methods.

Latest Patents

Kumagai holds a patent for a "Data authenticity assurance method, management computer, and storage medium." This patent outlines a comprehensive method for ensuring the authenticity of data through a series of systematic steps. The process involves receiving initial data, selecting additional data pieces at predetermined intervals, performing arithmetic operations on their hash values, and generating a digital signature to secure the data.

Career Highlights

Kumagai is currently employed at Hitachi, Ltd., a leading company in technology and innovation. His work at Hitachi has allowed him to explore and develop cutting-edge solutions in data management. With a focus on enhancing data security, he has positioned himself as a key player in the industry.

Collaborations

Throughout his career, Kumagai has collaborated with talented individuals such as Natsuki Watanabe and Yoko Hashimoto. These collaborations have fostered a creative environment that encourages innovation and the development of new ideas.

Conclusion

Tomohisa Kumagai's contributions to data authenticity assurance highlight his expertise and commitment to advancing technology. His innovative methods and collaborative spirit continue to influence the field of data management.

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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