Inventor
AKIZAWA MITSURU
JP12 patents
Patents
12 patentsUS5548724AAug 20, 1996
File server system and file access control method of the same
HITACHI LTD462 citations99
US5497488AMar 5, 1996
System for parallel string search with a function-directed parallel collation of a first partition of each string followed by matching of second partitions
HITACHI LTD250 citations99
US5603003AFeb 11, 1997
High speed file access control method and computer system including a plurality of storage subsystems connected on a bus
HITACHI LTD160 citations97
US6094647AJul 25, 2000
Presearch type document search method and apparatus
HITACHI LTD66 citations96
US5757983AMay 26, 1998
Document retrieval method and system
HITACHI LTD82 citations96
US5519857AMay 21, 1996
Hierarchical presearch type text search method and apparatus and magnetic disk unit used in the apparatus
HITACHI LTD59 citations96
US5452451ASep 19, 1995
System for plural-string search with a parallel collation of a first partition of each string followed by finite automata matching of second partitions
HITACHI LTD93 citations96
US5168533ADec 1, 1992
Hierarchical presearch type text search method and apparatus and magnetic disk unit used in the apparatus
HITACHI LTD37 citations96
US5138669AAug 11, 1992
Range-conditional character string retrieving method and system
HITACHI LTD29 citations92
US5036486AJul 30, 1991
Associative memory device
HITACHI LTD45 citations92
US5101376AMar 31, 1992
Integrated microprocessor with associative memory device
HITACHI LTD14 citations74
US5398206AMar 14, 1995
Semiconductor memory device with data error compensation
HITACHI LTD9 citations73