Inventor
KAGIMASA TOYOHIKO
JP23 patents
Patents
23 patentsUS5511177AApr 23, 1996
File data multiplexing method and data processing system
HITACHI LTD222 citations99
US6385606B2May 7, 2002
File format conversion method, and file system, information processing system, electronic commerce system using the method
HITACHI LTD171 citations98
US6182111B1Jan 30, 2001
Method and system for managing distributed data
HITACHI LTD351 citations98
US6081826AJun 27, 2000
System using environment manager with resource table in each computer for managing distributed computing resources managed for each application
HITACHI LTD111 citations98
US5948069ASep 7, 1999
Networking system and parallel networking method
HITACHI LTD119 citations98
US6377952B1Apr 23, 2002
File format conversion method, and file system, information processing system, electronic commerce system using the method
HITACHI LTD102 citations97
US5335334AAug 2, 1994
Data processing apparatus having a real memory region with a corresponding fixed memory protection key value and method for allocating memories therefor
HITACHI LTD120 citations97
US5809516ASep 15, 1998
Allocation method of physical regions of a disc array to a plurality of logically-sequential data, adapted for increased parallel access to data
HITACHI LTD117 citations95
US4792897ADec 20, 1988
Address translation unit for translation of virtual address to real address using translation tables of multi-level hierarchical structure
HITACHI LTD65 citations95
US5636356AJun 3, 1997
Disk array with original data stored in one disk drive and duplexed data distributed and stored in different disk drives
HITACHI LTD50 citations93
US5600783AFeb 4, 1997
Disc array system having disc storage devices dispersed on plural boards and accessible at withdrawal of part of the boards
HITACHI LTD36 citations93
US6567828B2May 20, 2003
File format conversion method, and file system, information processing system, electronic commerce system using the method
HITACHI LTD35 citations92
US5715452AFeb 3, 1998
Process of transferring file, process of gaining access to data and process of writing data
HITACHI LTD26 citations92
US4876646AOct 24, 1989
Data processor having multilevel address translation tables
HITACHI LTD39 citations91
US4868740ASep 19, 1989
System for processing data with multiple virtual address and data word lengths
HITACHI LTD27 citations91
US4679140AJul 7, 1987
Data processor with control of the significant bit lengths of general purpose registers
HITACHI LTD41 citations91
US5745771AApr 28, 1998
Disc array device and disc control method
HITACHI LTD24 citations90
US5426752AJun 20, 1995
Method for allocating real pages to virtual pages having different page sizes therefrom
HITACHI LTD50 citations90
US5363502ANov 8, 1994
Hot stand-by method and computer system for implementing hot stand-by method
HITACHI LTD33 citations87
US5737510AApr 7, 1998
Disc array system having disc storage devices dispersed on plural boards and accessible at withdrawal of part of the boards
HITACHI LTD11 citations74
US5293599AMar 8, 1994
Process for partially swapping real storage areas used by a program between a real storage and an auxiliary storage
HITACHI LTD14 citations73
US4851989AJul 25, 1989
Data processing apparatus with a virtual storage address boundary check circuit
HITACHI LTD15 citations69
US5928360AJul 27, 1999
Shared computer system for selective execution of fundamental software
HITACHI LTD4 citations63