Inventor
YOSHIMURA MITSUHIKO
JP12 patents
Patents
12 patentsUS6882994B2Apr 19, 2005
Method and system for querying database, as well as a recording medium for storing a database querying program
HITACHI LTD130 citations96
US5930799AJul 27, 1999
Database creating method using image information
HITACHI LTD56 citations94
US6792425B2Sep 14, 2004
Secure multi database system including a client, multi database server, and database server
HITACHI LTD37 citations92
US6266676B1Jul 24, 2001
Link information management method
HITACHI LTD19 citations92
US6708183B1Mar 16, 2004
Spatial information search system
HITACHI LTD20 citations89
US7152067B2Dec 19, 2006
Secure multi database system including a plurality of database devices
HITACHI LTD14 citations84
US7080084B2Jul 18, 2006
Method for changing database construction information
HITACHI LTD19 citations84
US7113951B2Sep 26, 2006
Method and system for detecting tables to be modified
HITACHI LTD8 citations73
US6169995B1Jan 2, 2001
Link information maintenance management method
HITACHI LTD10 citations73
US6381612B2Apr 30, 2002
Link information maintenance and management method
HITACHI LTD1 citations62
US7756978B2Jul 13, 2010
Multiplicity adjustment system and method
HITACHI LTD4 citations56
US7089268B2Aug 8, 2006
Document management method and document management system
HITACHI LTD6 citations52