Company Filing History:
Years Active: 2002
Title: Innovation in Security: The Invention of Katsufumi Naka
Introduction
Katsufumi Naka, located in Mie, Japan, is an innovative inventor known for his contributions to security technology. With a keen interest in developing advanced systems, Naka has secured a patent for his creative invention that aims to enhance article surveillance.
Latest Patents
Naka holds one patent for an "Article Surveillance Security System with Self-Alarm." This innovative system operates within the frequency range of 6 to 10 MHz, receiving swept low-level radio waves within ±5 to 15% of its central frequency. The design integrates a tuning circuit and a differential amplifier to amplify and detect outputs, ensuring a reliable alarm system. The differential amplifier is expertly configured with a load resistance between 3 and 5 MΩ, while maintaining an operating current of 3 µA or less. Additionally, Naka's invention aims at stabilizing bias drift through temperature by connecting the amplification/detection transistors strategically. This system provides approximately four years of durability with minimal power supply needs and effectively suppresses external noise, particularly from mobile phone frequencies.
Career Highlights
Katsufumi Naka is associated with Kojin Co., Ltd., where he continues to innovate within the field of security technology. His work not only reflects his expertise but also his commitment to enhancing the safety and reliability of surveillance systems.
Collaborations
Throughout his career, Naka has collaborated with fellow inventor Hitoshi Hasegawa. Together, they have pushed the boundaries of what is possible in security technology, contributing to the development of reliable surveillance systems.
Conclusion
Katsufumi Naka's contributions to the field of article surveillance emphasize the importance of innovation in ensuring safety and security. His patented system exemplifies a significant advancement in technology, showcasing the potential of dedicated inventors to create solutions that address real-world challenges.