Yokohama, Japan

Tutomu Matumoto

This inventor holds 1 USPTO granted patent. Top assignee: Kabushiki Kaisha Advance. Active years: 1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tutomu Matumoto. Retrieved from https://idiyas.com/inventor/tutomu-matumoto

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 = 2.0

ph-index = 1

Forward Citations = 76(Granted Patents)


Company Filing History:


Years Active: 1991

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1 patent (USPTO):Explore Patents

Title: The Innovative Mind of Tutomu Matumoto

Introduction

Tutomu Matumoto, an accomplished inventor based in Yokohama, Japan, has made significant contributions in the field of communication systems through his innovative patent. With a keen focus on cryptographic technologies, Matumoto aims to enhance secure communications among entities.

Latest Patents

Matumoto holds a notable patent titled "Common Cryptokey Generation System and Communication System Using Common," which outlines a sophisticated method for generating a shared cryptokey (k) between two communicating entities, A and B. The system utilizes unique identifiers (y.sub.A, y.sub.S) and a central algorithm (G) known only to the center. This pivotal invention allows for the secure creation of distinct secret algorithms (x.sub.A, X.sub.B) for each entity, stored on integrated circuit (IC) cards or other cipher generation means. The cryptokey is then computed using the identifiers of the communicating parties, thereby ensuring confidential communication.

Career Highlights

Matumoto's career is marked by his dedication to advancing communication technologies. Currently, he is employed at Kabushiki Kaisha Advance, where he continues to work on innovative projects. His expertise in cryptographic systems positions him as a valuable asset to the company and the field.

Collaborations

In his career, he has collaborated closely with Hideki Imai, another talented professional in the field. Their joint efforts in research and development are indicative of their commitment to driving innovation and enhancing security within communication systems.

Conclusion

Tutomu Matumoto stands out as an influential inventor whose work in cryptographic technology demonstrates the importance of secure communication in today’s digital age. With his patent in hand and a robust career at Kabushiki Kaisha Advance, Matumoto continues to pave the way for future innovations in the field.

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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