Location History:
- Itami City, JP (1991)
- Itami, JP (1990 - 1997)
- Kanagawa, JP (2014)
- Hyogo, JP (1992 - 2015)
- Tokyo, JP (1997 - 2015)
Company Filing History:
25 out of 21,351 
7 out of 7,524 
3 out of 3,781 
Years Active: 1990-2015
Title: **Atsuo Yamaguchi: Innovator in Data Processing Technologies**
Introduction
Atsuo Yamaguchi is a prominent inventor based in Itami, Japan, recognized for his significant contributions to data processing technologies. With an impressive portfolio of 36 patents, he has made notable advancements that enhance the security and efficiency of data handling.
Latest Patents
Yamaguchi's latest innovations include a **Data Processing Apparatus** designed to detect software falsification and unauthorized data rewriting. This apparatus features a security unit equipped with an encryption circuit for decrypting encrypted signals containing sensitive data. Additionally, it incorporates a compression circuit to manage access signals and a comparison circuit to ensure the integrity of data through expected compression results.
Another significant invention is the **Random Number Generator with a Ring Oscillation Circuit**. This device utilizes a ring oscillator comprising an EX-OR gate and four inverters, forming a stable loop that oscillates based on input signals. The innovative aspect of this generator lies in its ability to produce true random number data, reliant on the fluctuating metastable states of its output nodes. This technological advancement promises miniaturization and reduced power consumption while delivering high-performance capabilities.
Career Highlights
Throughout his career, Atsuo Yamaguchi has been associated with renowned companies such as Mitsubishi Electric Corporation and Renesas Electronics Corporation. His work at these organizations has contributed to various research and development projects aimed at bolstering data security and processing efficiency.
Collaborations
During his innovative journey, Yamaguchi has collaborated with notable professionals, including Shigeru Furuta and Kenichi Takahira. These partnerships have further fueled his inventive spirit and expanded the horizons of his technological contributions.
Conclusion
Atsuo Yamaguchi's dedication to innovation in data processing and security is evidenced by his extensive patent portfolio and impactful career. His inventions continue to play a critical role in shaping the future of data technologies, underscoring his prominence as an esteemed inventor in the field.