Makoto Urakawa

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of controlling a data dictionary directory system in a data...
- Patent number 4,979,109
- Issue date Dec 18, 1990
- Hitachi Ltd.
- Kazuaki Tanaka
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of processing data access in a database management system wi...
- Patent number 4,819,160
- Issue date Apr 4, 1989
- Hitachi, Ltd.
- Kazuaki Tanka
- G06 - COMPUTING CALCULATING COUNTING