Data processing: database and file management or data structures – Database and file access – Record – file – and data search and comparisons
Reexamination Certificate
2011-04-26
2011-04-26
Rones, Charles (Department: 2164)
Data processing: database and file management or data structures
Database and file access
Record, file, and data search and comparisons
C707S778000, C707S829000, C707S956000
Reexamination Certificate
active
07933910
ABSTRACT:
A data retrieving apparatus having: an input apparatus for inputting the hierarchical structure data showing the hierarchical structure and operation instruction data; a data storing apparatus for storing the inputted hierarchical structure data; a retrieving apparatus for retrieving data which satisfies conditions from the hierarchical structure data stored in the data storing apparatus on the basis of the operation instruction data which is inputted by the input apparatus; and an output apparatus for outputting the retrieved data. Each data which is stored in the data storing apparatus has items regarding an efficient date and items regarding a data change date. The retrieving apparatus has an apparatus for retrieving the data on the basis of the efficient date and the data change date.
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Hotta Miyako
Ishida Tomotoshi
Kantou Mutsuo
Antonelli, Terry Stout & Kraus, LLP.
Hitachi , Ltd.
Mahmood Rezwanul
Rones Charles
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