Cushman, Darby & Cushman
Database restructuring system for detecting functionally dependent relations and converting them into third normal form
 A database restructuring system normalizes a table of a relational database to generate a third normal form relation. The database restructuring system is present independently of a database management system. The database restructuring system accesses a database using a data manipulation language such as an SQL supplied from the database management system. When the database is to be restructured, a database manager requests the database restructuring system to normalize a designated relation. The database restructuring system provides a function of converting the designated relation into a third normal form relation in accordance with a functional dependency. 
Kabushiki Kaisha Toshiba
Y G
Y10S G06F
additional inventional
Nobuhiro
Kato