Yasushi Kawashimo

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Hirakata, JP

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Patents Grantslast 30 patents

Information Patent Grant
Document retrieval method and document retrieval system
- Patent number 7,039,636
- Issue date May 2, 2006
- Hitachi, Ltd.
- Katsumi Tada
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Registration method and search method for structured documents
- Patent number 6,826,567
- Issue date Nov 30, 2004
- Hitachi, Ltd.
- Katsumi Tada
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and search method for structured documents
- Patent number 6,496,820
- Issue date Dec 17, 2002
- Hitachi, Ltd.
- Katsumi Tada
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
METHOD AND SYSTEM FOR EXTRACTING CHARACTERISTIC STRING, METHOD AND...
- Patent number 6,473,754
- Issue date Oct 29, 2002
- Hitachi, Ltd.
- Tadataka Matsubayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Text data registering and retrieving system including a database st...
- Patent number 6,003,043
- Issue date Dec 14, 1999
- Hitachi, Ltd.
- Atsushi Hatakeyama
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Document retrieval method and document retrieval system
- Publication number 20030200211
- Publication date Oct 23, 2003
- Katsumi Tada
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Registration method and search method for structured documents
- Publication number 20020188604
- Publication date Dec 12, 2002
- Katsumi Tada
- G06 - COMPUTING CALCULATING COUNTING