Inventor
KAWAGUCHI HISAMITSU
JP26 patents
⚠️ This page may combine multiple inventors who share the name “KAWAGUCHI HISAMITSU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
25 patentsUS6105022AAug 15, 2000
Structured-text cataloging method, structured-text searching method, and portable medium used in the methods
HITACHI LTD92 citations99
US5548724AAug 20, 1996
File server system and file access control method of the same
HITACHI LTD462 citations99
US6510425B1Jan 21, 2003
Document search method for registering documents, generating a structure index with elements having position of occurrence in documents represented by meta-nodes
HITACHI LTD75 citations98
US6377946B1Apr 23, 2002
Document search method and apparatus and portable medium used therefor
HITACHI LTD82 citations98
US5748953AMay 5, 1998
Document search method wherein stored documents and search queries comprise segmented text data of spaced, nonconsecutive text elements and words segmented by predetermined symbols
HITACHI LTD103 citations97
US5745745AApr 28, 1998
Text search method and apparatus for structured documents
HITACHI LTD121 citations97
US6434551B1Aug 13, 2002
Structured-text cataloging method, structured-text searching method, and portable medium used in the methods
HITACHI LTD34 citations96
US6389413B2May 14, 2002
Structured-text cataloging method, structured-text searching method, and portable medium used in the methods
HITACHI LTD61 citations96
US6226632B1May 1, 2001
Structured-text cataloging method, structured-text searching method, and portable medium used in the methods
HITACHI LTD39 citations96
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
US5469354ANov 21, 1995
Document data processing method and apparatus for document retrieval
HITACHI LTD148 citations96
US5454105ASep 26, 1995
Document information search method and system
HITACHI LTD75 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
US5220625AJun 15, 1993
Information search terminal and system
HITACHI LTD147 citations96
US5168533ADec 1, 1992
Hierarchical presearch type text search method and apparatus and magnetic disk unit used in the apparatus
HITACHI LTD37 citations96
US5140644AAug 18, 1992
Character string retrieving system and method
HITACHI LTD88 citations96
US5051886ASep 24, 1991
System for character stream search using finite state automaton technique
HITACHI LTD89 citations96
US5278981AJan 11, 1994
Character stream search apparatus using a finite state automation
HITACHI LTD39 citations93
US5471610ANov 28, 1995
Method for character string collation with filtering function and apparatus
HITACHI LTD50 citations92
US5138669AAug 11, 1992
Range-conditional character string retrieving method and system
HITACHI LTD29 citations92
US6535875B2Mar 18, 2003
Structured-text cataloging method, structured-text searching method, and portable medium used in the methods
HITACHI LTD12 citations82
US6745202B2Jun 1, 2004
Structured-text cataloging method, structured-text searching method, and portable medium used in the methods
HITACHI LTD8 citations74
US5970485AOct 19, 1999
News clipping method and system
HITACHI LTD16 citations74