Satoshi Asakawa

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Document searching method using forward and backward citation tables
- Patent number 5,832,476
- Issue date Nov 3, 1998
- Hitachi, Ltd.
- Katsumi Tada
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Document search method wherein stored documents and search queries...
- Patent number 5,748,953
- Issue date May 5, 1998
- Hitachi, Ltd.
- Natsuko Mizutani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Text search method and apparatus for structured documents
- Patent number 5,745,745
- Issue date Apr 28, 1998
- Hitachi, Ltd.
- Katsumi Tada
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Document data processing method and apparatus for document retrieval
- Patent number 5,469,354
- Issue date Nov 21, 1995
- Hitachi, Ltd.
- Atsushi Hatakeyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Document information search method and system
- Patent number 5,454,105
- Issue date Sep 26, 1995
- Hitachi, Ltd.
- Atsushi Hatakeyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Information search terminal and system
- Patent number 5,220,625
- Issue date Jun 15, 1993
- Hitachi, Ltd.
- Atsushi Hatakeyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Information retrieval system with means for analyzing undefined wor...
- Patent number 4,994,967
- Issue date Feb 19, 1991
- Hitachi, Ltd.
- Satoshi Asakawa
- G06 - COMPUTING CALCULATING COUNTING

Satoshi Asakawa

Person

Patents Grantslast 30 patents

Document searching method using forward and backward citation tables

Document search method wherein stored documents and search queries...

Text search method and apparatus for structured documents

Document data processing method and apparatus for document retrieval

Document information search method and system

Information search terminal and system

Information retrieval system with means for analyzing undefined wor...