This inventor holds 12 USPTO granted patents. Top assignees: Hitachi, Ltd., Hitachi Control Systems, Inc., Hitachi Information Control Systems, Inc.. Active years: 1990-2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Yokohama, JP (1990)
- Bunkyo-ku, JP (2002)
- Tokyo, JP (1995 - 2010)
Company Filing History:

Years Active: 1990-2025
Title: Innovations of Yasuhiko Nagai
Introduction
Yasuhiko Nagai is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of computer systems and cybersecurity, holding a total of 12 patents. His work focuses on enhancing security measures and improving system designs through innovative methodologies.
Latest Patents
One of his latest patents is a "Computer system and analysis method for impact of security risk." This invention involves a computer system that manages function information, resource information, and product configuration system information. It is designed to obtain cybersecurity information on a target resource with a security risk and generate impact range information for identified components. Another notable patent is the "Tool, method, and program for supporting system security design/evaluation." This tool is constructed from various tables that identify linkages between threats and components, deriving assurance levels based on risk values.
Career Highlights
Yasuhiko Nagai has worked with notable companies such as Hitachi, Ltd. and Hitachi Information & Control Systems, Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas in the realm of cybersecurity and system design.
Collaborations
Throughout his career, Yasuhiko has collaborated with esteemed colleagues, including Michio Suzuki and Goro Ikeba. These partnerships have contributed to the advancement of his projects and the successful implementation of his inventions.
Conclusion
Yasuhiko Nagai's contributions to the field of cybersecurity and system design are noteworthy. His innovative patents and collaborations reflect his commitment to enhancing technology and security measures.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile