Location History:
- Yokohama, JP (2006 - 2008)
- Ebina, JP (2012)
- Sagamihara, JP (2016)
- Tokyo, JP (1991 - 2024)
Company Filing History:
16 out of 42,485 
1 out of 2 
1 out of 1,498 
Years Active: 1991-2025
Title: Innovations by Hisayoshi Sato: Advancements in Data Comparison Technology
Introduction: Hisayoshi Sato, based in Tokyo, Japan, is a prominent inventor recognized for his significant contributions to the field of data comparison technologies. With an impressive portfolio of 21 patents, his work focuses on innovative methods and devices designed to enhance data processing security and efficiency.
Latest Patents: Hisayoshi Sato's latest patents include a "Data Comparison Device," "Data Comparison System," and "Data Comparison Method." The Data Comparison Device is designed to hold first and second encrypted data corresponding to first and second plaintexts. The first plaintext is divided into multiple blocks, allowing the first encrypted data to be generated through encryption and shuffling of these blocks. A crucial feature of this device is the embedding of a plaintext value, which indicates a magnitude comparison result. This capability allows the device to compare blocks from the two encrypted datasets to determine the relationship between the first and second plaintexts. Furthermore, Sato's "Information Processing System" and "Information Processing Method" involve a two-terminal process to generate third encrypted data, which helps in calculating and transmitting common data parts securely and efficiently.
Career Highlights: Hisayoshi Sato has made significant strides in his career, particularly through his work with Hitachi, Ltd. His innovations continue to influence data processing and security across various industries, showcasing his commitment to pushing the boundaries of technology.
Collaborations: Throughout his career, Sato has collaborated with esteemed colleagues such as Masayuki Yoshino and Ken Naganuma. These partnerships have undoubtedly enhanced his work and contributed to the successful development of his patented innovations.
Conclusion: Hisayoshi Sato's contributions to the field of data comparison technology illustrate the importance of innovation in modern information security. With numerous patents to his name and ongoing collaborations, Sato continues to be a pioneering force in the technology sector, driving forward the capabilities of data processing systems.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.