Yuichi Ogawa

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
System and method to enable parallel text search using in-charge in...
- Patent number 7,689,545
- Issue date Mar 30, 2010
- Hitachi, Ltd.
- Tadataka Matsubayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for calculating similarity among documents
- Patent number 7,440,938
- Issue date Oct 21, 2008
- Hitachi, Ltd.
- Tadataka Matsubayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Similarity-based search method by relevance feedback
- Patent number 7,130,849
- Issue date Oct 31, 2006
- Hitachi, Ltd.
- Takaaki Yayoi
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Method and system for retrieving a document
- Publication number 20060101004
- Publication date May 11, 2006
- Tadataka Matsubayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method and apparatus for calculating similarity among documents
- Publication number 20050021508
- Publication date Jan 27, 2005
- Tadataka Matsubayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method and device for relevant document search
- Publication number 20040193584
- Publication date Sep 30, 2004
- Yuichi Ogawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Similarity-based search method by relevance feedback
- Publication number 20030149704
- Publication date Aug 7, 2003
- Hitachi, Inc.
- Takaaki Yayoi
- G06 - COMPUTING CALCULATING COUNTING