Tokyo, Japan

Shigetomo Tamai

This inventor holds 6 USPTO granted patents and 2 published patent applications. Top assignees: Computer Systems Engineering Co., Ltd., Cse Co., Ltd. Active years: 2008-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigetomo Tamai. Retrieved from https://idiyas.com/inventor/shigetomo-tamai

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

USPTO Granted Patents = 6 

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 5

Forward Citations = 80(Granted Patents)


Company Filing History:


Years Active: 2008-2014

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6 patents (USPTO):Explore Patents

Title: Shigetomo Tamai: Innovator in User Authentication Technologies

Introduction

Shigetomo Tamai is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of user authentication technologies, holding a total of 6 patents. His work focuses on enhancing security measures through innovative authentication systems.

Latest Patents

One of his latest patents is titled "System, method and program for off-line two-factor user authentication." This invention provides an off-line two-factor user authentication system designed to utilize a one-time-password derivation rule applied to specific pattern elements. This system creates a one-time password and employs client identification as a second authentication factor. Another significant patent is the "System and method for two-factor user authentication," which aims to reduce the risk of leakage of authentication information. This system generates a pattern seed value that uniquely specifies a presentation pattern in combination with a client ID, enhancing the security of user authentication processes.

Career Highlights

Shigetomo Tamai has worked with several companies, including Computer Systems Engineering Co., Ltd. and CSE Co., Ltd. His experience in these organizations has contributed to his expertise in developing advanced authentication systems.

Collaborations

Some of his notable coworkers include Yukiya Ueda and Tsugune Saito. Their collaboration has likely played a role in the development of innovative solutions in the field of user authentication.

Conclusion

Shigetomo Tamai's contributions to user authentication technologies demonstrate his commitment to enhancing security measures in digital environments. His innovative patents reflect a deep understanding of the challenges in authentication and a dedication to providing effective solutions.

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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