Company Filing History:
5 out of 42,508 
1 out of 149 
1 out of 228 
Years Active: 1985-1993
Title: Kiyoshi Yata: Innovator in Database Management and File Encryption
Introduction
Kiyoshi Yata is a notable inventor based in Hadano, Japan. He has made significant contributions to the fields of database management and file encryption, holding a total of 5 patents. His work has been influential in enhancing data processing and security systems.
Latest Patents
Yata's latest patents include an input/output processing method in a database management system. This invention involves a microprogram that controls the collection of data according to the data format. It also features asynchronous processing of input/output requests, parallel accessing for each recording medium, and a mode deciding mechanism that judges between page search and data search modes. Another significant patent is a file encryption method and file cryptographic system. This system allows for encryption and decryption of data using an algorithm controlled by a data key, performed in an external storage device, thereby reducing the burden on the upper rank apparatus and ensuring data secrecy.
Career Highlights
Throughout his career, Kiyoshi Yata has worked with prominent companies such as Hitachi, Ltd. and Hitachi Microcomputer Engineering, Ltd. His experience in these organizations has contributed to his expertise in information technology and data management.
Collaborations
Yata has collaborated with notable coworkers, including Hideo Sawada and Masafumi Nozawa. Their joint efforts have likely played a role in advancing the innovations that Yata has developed.
Conclusion
Kiyoshi Yata's contributions to database management and file encryption have established him as a key figure in the field of information technology. His patents reflect a commitment to improving data processing and security, making a lasting impact on the industry.