Inventor
TSUCHIDA MASASHI
JP47 patents
⚠️ This page may combine multiple inventors who share the name “TSUCHIDA MASASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
42 patentsUS6567806B1May 20, 2003
System and method for implementing hash-based load-balancing query processing in a multiprocessor database system
HITACHI LTD108 citations99
US6026394AFeb 15, 2000
System and method for implementing parallel operations in a database management system
HITACHI LTD173 citations99
US5806059ASep 8, 1998
Database management system and method for query process for the same
HITACHI LTD153 citations99
US6256621B1Jul 3, 2001
Database management system and query operation therefor, including processing plural database operation requests based on key range of hash code
HITACHI LTD85 citations98
US6101495AAug 8, 2000
Method of executing partition operations in a parallel database system
HITACHI LTD106 citations98
US5091852AFeb 25, 1992
System for optimizing query processing in a relational database
HITACHI LTD232 citations98
US6801921B2Oct 5, 2004
Method and system for managing multiple database storage units
HITACHI LTD53 citations96
US6564205B2May 13, 2003
Querying parallel database system that execute stored procedures using abstract data type attributes, retrieving location information of data, sub-data between first and second server
HITACHI LTD49 citations96
US6510428B2Jan 21, 2003
Method and system of database divisional management for parallel database system
HITACHI LTD72 citations96
US6192359B1Feb 20, 2001
Method and system of database divisional management for parallel database system
HITACHI LTD55 citations96
US5983213ANov 9, 1999
Database processing method and apparatus using handle
HITACHI LTD36 citations96
US5983228ANov 9, 1999
Parallel database management method and parallel database management system
HITACHI LTD88 citations96
US5940289AAug 17, 1999
Parallel database system retrieval method of a relational database management system using initial data retrieval query and subsequent sub-data utilization query processing for minimizing query time
HITACHI LTD53 citations96
US5813005ASep 22, 1998
Method and system of database divisional management for parallel database system
HITACHI LTD85 citations96
US5237661AAug 17, 1993
Buffer management method and system therefor using an I/O buffer on main memory and utilizing virtual memory and page fixing
HITACHI LTD91 citations96
US4967341AOct 30, 1990
Method and apparatus for processing data base
HITACHI LTD77 citations95
US7321907B2Jan 22, 2008
Method and system for managing multiple database storage units
HITACHI LTD22 citations93
US6829623B2Dec 7, 2004
Method and system for managing multiple database storage units
HITACHI LTD20 citations93
US6789074B1Sep 7, 2004
Database processing method and apparatus, and medium for recording processing program thereof
HITACHI LTD22 citations93
US6694312B2Feb 17, 2004
Database processing method and apparatus for processing data by analyzing query input
HITACHI LTD24 citations92
US6556988B2Apr 29, 2003
Database management apparatus and query operation therefor, including processing plural database operation requests based on key range of hash code
HITACHI LTD23 citations92
US6505199B1Jan 7, 2003
Database processing method, apparatus for implementing same, and medium containing processing program therefor
HITACHI LTD19 citations92
US6374238B1Apr 16, 2002
Routine executing method in database system
HITACHI LTD20 citations92
US6076085AJun 13, 2000
Routine executing method in database system
HITACHI LTD16 citations92
US4916655AApr 10, 1990
Method and apparatus for retrieval of a search string
HITACHI LTD54 citations92
US5261065ANov 9, 1993
Input/output processing method in a database management system
HITACHI LTD24 citations89
US6327585B1Dec 4, 2001
Database processing method and apparatus using handle
HITACHI LTD12 citations82
US7599910B1Oct 6, 2009
Method and system of database divisional management for parallel database system
HITACHI LTD7 citations74
US6728710B2Apr 27, 2004
Database processing method, apparatus for implementing same, and medium containing processing program therefor
HITACHI LTD5 citations74
US6212516B1Apr 3, 2001
Parallel database management method and parallel database management system
HITACHI LTD8 citations74
US5930800AJul 27, 1999
Execution of user defined ADT function implemented by embedded module in a database management method
HITACHI LTD13 citations74
US5185888AFeb 9, 1993
Method and apparatus for data merging/sorting and searching using a plurality of bit-sliced processing units
HITACHI LTD20 citations74
US7113951B2Sep 26, 2006
Method and system for detecting tables to be modified
HITACHI LTD8 citations73
US6480833B2Nov 12, 2002
Method of resolving overloaded routines, system for implementing the same and medium for storing processing program therefor
HITACHI LTD9 citations73
US6405193B2Jun 11, 2002
Database processing method and apparatus using handle
HITACHI LTD5 citations73
US7225179B2May 29, 2007
Querying database system to execute stored procedures using abstract data type attributes, retrieving location information of data, sub-data between first and second servers
HITACHI LTD3 citations63
US6959302B2Oct 25, 2005
Querying database system to execute stored procedures using abstract data type attributes, retrieving location information of data, sub-data between first and second servers
HITACHI LTD3 citations63
US6938043B2Aug 30, 2005
Database processing method, apparatus for implementing same, and medium containing processing program therefor
HITACHI LTD4 citations63
US6711566B2Mar 23, 2004
Database processing method and apparatus using handle
HITACHI LTD1 citations62
US6424964B1Jul 23, 2002
Database processing method and apparatus using handle
HITACHI LTD2 citations62
US7100126B2Aug 29, 2006
Electrical form design and management method, and recording medium
HITACHI LTD4 citations60
US10311111B2Jun 4, 2019
Search method and apparatus and storage medium
HITACHI LTD0 citations35