Inventor · disambiguated record
Toyohiko Kagimasa
Also filed as: KAGIMASA TOYOHIKO
23 granted patents·1,783 citations·filing 1984–2002
97Inventor score
Files withHITACHI LTD23
Top patents by PatentIndex Score
23 records- 0196US6385606B2File format conversion method, and file system, information processing system, electronic commerce system using the methodHITACHI LTD·Filed 2001·Granted May 7, 2002·171 cites·22 claims
- 0296US6182111B1Method and system for managing distributed dataHITACHI LTD·Filed 1998·Granted Jan 30, 2001·351 cites·29 claims
- 0394US5511177AFile data multiplexing method and data processing systemHITACHI LTD·Filed 1994·Granted Apr 23, 1996·222 cites·24 claims
- 0490US6377952B1File format conversion method, and file system, information processing system, electronic commerce system using the methodHITACHI LTD·Filed 1998·Granted Apr 23, 2002·102 cites·16 claims
- 0587US5600783ADisc array system having disc storage devices dispersed on plural boards and accessible at withdrawal of part of the boardsHITACHI LTD·Filed 1994·Granted Feb 4, 1997·36 cites·42 claims
- 0685US5335334AData processing apparatus having a real memory region with a corresponding fixed memory protection key value and method for allocating memories thereforHITACHI LTD·Filed 1991·Granted Aug 2, 1994·120 cites·18 claims
- 0783US6081826ASystem using environment manager with resource table in each computer for managing distributed computing resources managed for each applicationHITACHI LTD·Filed 1997·Granted Jun 27, 2000·111 cites·18 claims
- 0881US5809516AAllocation method of physical regions of a disc array to a plurality of logically-sequential data, adapted for increased parallel access to dataHITACHI LTD·Filed 1995·Granted Sep 15, 1998·117 cites·38 claims
- 0980US6567828B2File format conversion method, and file system, information processing system, electronic commerce system using the methodHITACHI LTD·Filed 2002·Granted May 20, 2003·35 cites·7 claims
- 1080US5948069ANetworking system and parallel networking methodHITACHI LTD·Filed 1996·Granted Sep 7, 1999·119 cites·40 claims
- 1178US4792897AAddress translation unit for translation of virtual address to real address using translation tables of multi-level hierarchical structureHITACHI LTD·Filed 1985·Granted Dec 20, 1988·65 cites·4 claims
- 1272US4679140AData processor with control of the significant bit lengths of general purpose registersHITACHI LTD·Filed 1984·Granted Jul 7, 1987·41 cites·13 claims
- 1368US5636356ADisk array with original data stored in one disk drive and duplexed data distributed and stored in different disk drivesHITACHI LTD·Filed 1993·Granted Jun 3, 1997·50 cites·35 claims
- 1466US4876646AData processor having multilevel address translation tablesHITACHI LTD·Filed 1985·Granted Oct 24, 1989·39 cites·3 claims
- 1565US5426752AMethod for allocating real pages to virtual pages having different page sizes therefromHITACHI LTD·Filed 1994·Granted Jun 20, 1995·50 cites·19 claims
- 1658US4868740ASystem for processing data with multiple virtual address and data word lengthsHITACHI LTD·Filed 1987·Granted Sep 19, 1989·27 cites·13 claims
- 1754US5715452AProcess of transferring file, process of gaining access to data and process of writing dataHITACHI LTD·Filed 1994·Granted Feb 3, 1998·26 cites·26 claims
- 1852US5363502AHot stand-by method and computer system for implementing hot stand-by methodHITACHI LTD·Filed 1991·Granted Nov 8, 1994·33 cites·17 claims
- 1948US5745771ADisc array device and disc control methodHITACHI LTD·Filed 1995·Granted Apr 28, 1998·24 cites·8 claims
- 2047US5293599AProcess for partially swapping real storage areas used by a program between a real storage and an auxiliary storageHITACHI LTD·Filed 1989·Granted Mar 8, 1994·14 cites·10 claims
- 2141US5737510ADisc array system having disc storage devices dispersed on plural boards and accessible at withdrawal of part of the boardsHITACHI LTD·Filed 1997·Granted Apr 7, 1998·11 cites·39 claims
- 2241US4851989AData processing apparatus with a virtual storage address boundary check circuitHITACHI LTD·Filed 1986·Granted Jul 25, 1989·15 cites·14 claims
- 2332US5928360AShared computer system for selective execution of fundamental softwareHITACHI LTD·Filed 1997·Granted Jul 27, 1999·4 cites·25 claims
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