Inventor · disambiguated record
Kazuo Masai
Also filed as: MASAI KAZUO
19 granted patents·2 pending applications·1,165 citations·filing 1987–2009
96Inventor score
Top patents by PatentIndex Score
21 records- 0193US6510428B2Method and system of database divisional management for parallel database systemHITACHI LTD·Filed 2001·Granted Jan 21, 2003·72 cites·16 claims
- 0292US5333314ADistributed data base system of composite subsystem type, and method of fault recovery for the systemHITACHI LTD·Filed 1991·Granted Jul 26, 1994·104 cites·21 claims
- 0391US5065311ADistributed data base system of composite subsystem type, and method fault recovery for the systemHITACHI LTD·Filed 1988·Granted Nov 12, 1991·120 cites·7 claims
- 0490US6101495AMethod of executing partition operations in a parallel database systemHITACHI LTD·Filed 1998·Granted Aug 8, 2000·106 cites·19 claims
- 0590US5813005AMethod and system of database divisional management for parallel database systemHITACHI LTD·Filed 1994·Granted Sep 22, 1998·85 cites·39 claims
- 0690US5778388AMethod of processing a synchronization point in a database management system to assure a database version using update logs from accumulated transactionsHITACHI LTD·Filed 1995·Granted Jul 7, 1998·174 cites·13 claims
- 0789US4937784ADistributed interactive processing method in complex system including plural work stations and plural host computers and apparatus using the sameHITACHI LTD·Filed 1987·Granted Jun 26, 1990·118 cites·7 claims
- 0888US5274809ATask execution control method for a multiprocessor system with enhanced post/wait procedureHITACHI LTD·Filed 1992·Granted Dec 28, 1993·145 cites·21 claims
- 0986US7031984B2Disaster recovery processing method and apparatus and storage unit for the sameHITACHI LTD·Filed 2003·Granted Apr 18, 2006·64 cites·17 claims
- 1074US6192359B1Method and system of database divisional management for parallel database systemHITACHI LTD·Filed 1999·Granted Feb 20, 2001·55 cites·36 claims
- 1167US5890150ARandom sampling method for use in a database processing system and a database processing system based thereonHITACHI LTD·Filed 1998·Granted Mar 30, 1999·50 cites·16 claims
- 1263US7599910B1Method and system of database divisional management for parallel database systemHITACHI LTD·Filed 2000·Granted Oct 6, 2009·7 cites·3 claims
- 1361US6745191B2Parallel database record distribution method and parallel database management systemHITACHI LTD·Filed 2003·Granted Jun 1, 2004·12 cites·8 claims
- 1461US6584457B1Parallel data base record distribution method and parallel data base management systemHITACHI LTD·Filed 2000·Granted Jun 24, 2003·6 cites·16 claims
- 1558US7039660B2Disaster recovery processing method and apparatus and storage unit for the sameHITACHI LTD·Filed 2003·Granted May 2, 2006·14 cites·8 claims
- 1650US7225178B2Data structure in database, database system for managing database and database managing method and systemHITACHI LTD·Filed 2002·Granted May 29, 2007·3 cites·2 claims
- 1750US2010042637A1Method and system of database divisional management for parallel database systemTSUCHIDA MASASHI·Filed 2009·Application pending·0 cites
- 1849US5987462AParallel data base record distribution method and parallel data base management systemHITACHI LTD·Filed 1997·Granted Nov 16, 1999·18 cites·19 claims
- 1938US6169982B1Parallel data base record distribution method and parallel data base management systemHITACHI LTD·Filed 1999·Granted Jan 2, 2001·8 cites·15 claims
- 2032US5717918AMethod for concurrently performing a physical sequential scan of a database into a database buffer which is queued until a preceding scan is completedHITACHI LTD·Filed 1995·Granted Feb 10, 1998·4 cites·14 claims
- 2125US2001011278A1Data structure in database, database system for managing database and database managing method and systemFiled 1998·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →