Kazunari Sugiyama

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Patents Grantslast 30 patents

Information Patent Grant
Method, program and apparatus for document retrieval system
- Patent number 7,620,614
- Issue date Nov 17, 2009
- Hitachi, Ltd.
- Kazunari Sugiyama
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Method, program and apparatus for document retrieval system
- Publication number 20070192274
- Publication date Aug 16, 2007
- Kazunari Sugiyama
- G06 - COMPUTING CALCULATING COUNTING