Inventor
MURAKAMI MASAHARU
JP31 patents
⚠️ This page may combine multiple inventors who share the name “MURAKAMI MASAHARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
14 patentsUS7599906B2Oct 6, 2009
File management device, file management method, file management method program, and recording medium the file management method program
SONY CORP25 citations92
US7246127B2Jul 17, 2007
Recording device for recording an index file having a hierarchical structure of index data, and recording method, and recording medium for same
SONY CORP26 citations92
US7610262B2Oct 27, 2009
File management device
SONY CORP8 citations84
US7487175B2Feb 3, 2009
Recording apparatus, file management method, program for file management method, and recording medium having program for file management method recorded thereon
SONY CORP7 citations74
US7372795B2May 13, 2008
Recording apparatus and method for generating an index file for a content file
SONY CORP4 citations63
US7287038B2Oct 23, 2007
Recording apparatus, file management method, program for file management method, recording medium having program for file management method recorded thereon
SONY CORP2 citations63
US7213028B2May 1, 2007
Recording apparatus, file management method, program for file management method, and recording medium having program for file management method recorded thereon
SONY CORP3 citations63
US8009968B2Aug 30, 2011
Recording apparatus, recording method, program, recording medium, and data recording medium
SONY CORP2 citations62
US7653286B2Jan 26, 2010
File reproduction apparatus, file reproduction method, file reproduction method program and recording medium for recording file reproduction method program
SONY CORP4 citations62
US8024381B2Sep 20, 2011
Recording apparatus, file management method, program for file management method, and recording medium having program for file management method recorded thereon
SONY CORP0 citations52
US7319809B2Jan 15, 2008
Recording apparatus, recording method, and program, and recording medium
SONY CORP0 citations52
US7257601B2Aug 14, 2007
Recording apparatus, file management method, program for file management method, recording medium having program for file management method recorded thereon
SONY CORP0 citations52
US7249144B2Jul 24, 2007
Recording apparatus, file management method, program for file management method, and recording medium having program for file management method recorded thereon
SONY CORP0 citations52
US7835618B2Nov 16, 2010
Recording apparatus, recording method, program of recording method, and recording medium having program of recording method recorded thereon
SONY CORP0 citations41
HITACHI LTD
8 patentsUS6094647AJul 25, 2000
Presearch type document search method and apparatus
HITACHI LTD66 citations96
US5519857AMay 21, 1996
Hierarchical presearch type text search method and apparatus and magnetic disk unit used in the apparatus
HITACHI LTD59 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
US7188149B2Mar 6, 2007
Storage operating data control system
HITACHI LTD24 citations92
US7047278B2May 16, 2006
Storage area network system, storage, and data transfer amount monitoring apparatus
HITACHI LTD13 citations81
US5179683AJan 12, 1993
Retrieval apparatus including a plurality of retrieval units
HITACHI LTD9 citations73
US6965940B2Nov 15, 2005
Operating method of a storage area network system
HITACHI LTD1 citations49