Inventor · disambiguated record
Katsumi Tada
Also filed as: TADA KATSUMI
33 granted patents·6 pending applications·2,460 citations·filing 1992–2021
98Inventor score
Files withHITACHI LTD29HITACHI SYSTEMS & SERVICES LTD2TADA KATSUMI1TOYO GOSEI KOGYO KK1YOSHINO GYPSUM CO1
Top patents by PatentIndex Score
39 records- 0197US5548724AFile server system and file access control method of the sameHITACHI LTD·Filed 1994·Granted Aug 20, 1996·462 cites·21 claims
- 0295US6665668B1Document retrieval method and system and computer readable storage mediumHITACHI LTD·Filed 2000·Granted Dec 16, 2003·144 cites·12 claims
- 0394US5548346AApparatus for integrally controlling audio and video signals in real time and multi-site communication control methodHITACHI LTD·Filed 1994·Granted Aug 20, 1996·183 cites·25 claims
- 0493US6510425B1Document search method for registering documents, generating a structure index with elements having position of occurrence in documents represented by meta-nodesHITACHI LTD·Filed 2001·Granted Jan 21, 2003·75 cites·8 claims
- 0592US5832476ADocument searching method using forward and backward citation tablesHITACHI LTD·Filed 1996·Granted Nov 3, 1998·173 cites·13 claims
- 0692US5572728AConference multimedia summary support system and methodHITACHI LTD·Filed 1994·Granted Nov 5, 1996·182 cites·20 claims
- 0791US6473754B1Method and system for extracting characteristic string, method and system for searching for relevant document using the same, storage medium for storing characteristic string extraction program, and storage medium for storing relevant document searching programHITACHI LTD·Filed 1999·Granted Oct 29, 2002·144 cites·22 claims
- 0891US5887171ADocument management system integrating an environment for executing an agent and having means for changing an agent into an objectHITACHI LTD·Filed 1997·Granted Mar 23, 1999·194 cites·36 claims
- 0988US5745745AText search method and apparatus for structured documentsHITACHI LTD·Filed 1995·Granted Apr 28, 1998·121 cites·22 claims
- 1086US5469354ADocument data processing method and apparatus for document retrievalHITACHI LTD·Filed 1992·Granted Nov 21, 1995·148 cites·50 claims
- 1184US7054860B2Method and system for retrieving a document and computer readable storage mediumHITACHI LTD·Filed 2003·Granted May 30, 2006·42 cites·10 claims
- 1281US6865571B2Document retrieval method and system and computer readable storage mediumHITACHI LTD·Filed 2001·Granted Mar 8, 2005·33 cites·7 claims
- 1381US6377946B1Document search method and apparatus and portable medium used thereforHITACHI LTD·Filed 1999·Granted Apr 23, 2002·82 cites·20 claims
- 1479US6334130B1Information registration method and document information processing apparatusHITACHI LTD·Filed 2000·Granted Dec 25, 2001·24 cites·8 claims
- 1578US7080099B2Method and system for storing and managing electronic mailHITACHI LTD·Filed 2002·Granted Jul 18, 2006·37 cites·12 claims
- 1675US7231388B2Similar document retrieving method and systemHITACHI LTD·Filed 2002·Granted Jun 12, 2007·24 cites·22 claims
- 1774US5748953ADocument search method wherein stored documents and search queries comprise segmented text data of spaced, nonconsecutive text elements and words segmented by predetermined symbolsHITACHI LTD·Filed 1995·Granted May 5, 1998·103 cites·18 claims
- 1873US6549898B1Method of and an apparatus for retrieving and delivering documents and a recording media on which a program for retrieving and delivering documents are storedHITACHI LTD·Filed 2000·Granted Apr 15, 2003·28 cites·22 claims
- 1971US6665667B2Method of and an apparatus for retrieving and delivering documents and a recording media on which a program for retrieving and delivering documents are storedHITACHI LTD·Filed 2002·Granted Dec 16, 2003·14 cites·20 claims
- 2068US7047238B2Document retrieval method and document retrieval systemHITACHI SYSTEMS & SERVICES LTD·Filed 2003·Granted May 16, 2006·29 cites·21 claims
- 2168US6757676B1Text mining method and apparatus allowing a user to analyze contents of a document set from plural analysis axesHITACHI LTD·Filed 2000·Granted Jun 29, 2004·23 cites·17 claims
- 2267US7039636B2Document retrieval method and document retrieval systemHITACHI LTD·Filed 2003·Granted May 2, 2006·23 cites·4 claims
- 2367US5471610AMethod for character string collation with filtering function and apparatusHITACHI LTD·Filed 1993·Granted Nov 28, 1995·50 cites·38 claims
- 2465US6496820B1Method and search method for structured documentsHITACHI LTD·Filed 1999·Granted Dec 17, 2002·28 cites·2 claims
- 2563US7010519B2Method and system for expanding document retrieval informationHITACHI SYSTEMS & SERVICES LTD·Filed 2001·Granted Mar 7, 2006·16 cites·20 claims
- 2662US6738786B2Data display method and apparatus for use in text miningHITACHI LTD·Filed 2001·Granted May 18, 2004·9 cites·23 claims
- 2762US6490583B2Information registration method and document information processing apparatusHITACHI LTD·Filed 2001·Granted Dec 3, 2002·14 cites·3 claims
- 2860US6178422B1Information registration method and document information processing apparatusHITACHI LTD·Filed 1998·Granted Jan 23, 2001·31 cites·8 claims
- 2959US12312809B2Gypsum-based load-bearing board, load-bearing wall structure, and load-bearing wall construction method for wooden construction buildingYOSHINO GYPSUM CO·Filed 2021·Granted May 27, 2025·0 cites·15 claims
- 3055US6713225B21,2-Naphthoquinone-2-diazidesulfonate ester photosensitive agent, method for producing the photosensitive agent, and photoresist compositionTOYO GOSEI KOGYO KK·Filed 2003·Granted Mar 30, 2004·3 cites·8 claims
- 3155US2003110091A1Information delivering service systemFiled 2002·Application pending·0 cites
- 3252US6826567B2Registration method and search method for structured documentsHITACHI LTD·Filed 2002·Granted Nov 30, 2004·9 cites·10 claims
- 3352US2002059382A1System and method for sending electronic mail and computer readable storage mediumFiled 2001·Application pending·0 cites
- 3450US2002002589A1Method and system for managing access right of E-mail informationFiled 2001·Application pending·0 cites
- 3549US7200587B2Method of searching similar document, system for performing the same and program for processing the sameHITACHI LTD·Filed 2002·Granted Apr 3, 2007·10 cites·3 claims
- 3640US2010043344A1Composition for building material, and gypsum board and construction method using them and wall and the likeTADA KATSUMI·Filed 2006·Application pending·0 cites
- 3739US2003009440A1Profile management method for information filtering and profile management programFiled 2002·Application pending·0 cites
- 3837US2002164458A1Electromagnetic wave-shielding construction material and method for producing the sameFiled 2001·Application pending·0 cites
- 3936US7333983B2Method of and an apparatus for retrieving and delivering documents and a recording media on which a program for retrieving and delivering documents are storedHITACHI LTD·Filed 2003·Granted Feb 19, 2008·2 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →