Inventor · disambiguated record
Atsushi Hatakeyama
Also filed as: HATAKEYAMA ATSUSHI
88 granted patents·19 pending applications·3,901 citations·filing 1986–2025
99Inventor score
Files withHITACHI LTD34FUJITSU LTD27MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10EASTMAN KODAK CO4HATAKEYAMA ATSUSHI4
Top patents by PatentIndex Score
107 records- 0197US5404506AKnowledge based information retrieval systemHITACHI LTD·Filed 1992·Granted Apr 4, 1995·274 cites·16 claims
- 0296US5555408AKnowledge based information retrieval systemHITACHI LTD·Filed 1993·Granted Sep 10, 1996·177 cites·38 claims
- 0396US4985863ADocument storage and retrieval systemHITACHI LTD·Filed 1990·Granted Jan 15, 1991·313 cites·9 claims
- 0495US7908314B2Method for controlling a management computerHITACHI LTD·Filed 2005·Granted Mar 15, 2011·54 cites·14 claims
- 0595US5668763ASemiconductor memory for increasing the number of half good memories by selecting and using good memory blocksFUJITSU LTD·Filed 1996·Granted Sep 16, 1997·129 cites·17 claims
- 0693US5051886ASystem for character stream search using finite state automaton techniqueHITACHI LTD·Filed 1988·Granted Sep 24, 1991·89 cites·14 claims
- 0792US6628248B2Image display apparatus and method for compensating display image of image display apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Sep 30, 2003·61 cites·27 claims
- 0892US6028816ASystem configured of synchronous semiconductor device for adjusting timing of each input and semiconductor device used thereforFUJITSU LTD·Filed 1997·Granted Feb 22, 2000·85 cites·67 claims
- 0992US5508565ASemiconductor device having a plurality of chips having identical circuit arrangement sealed in packageFUJITSU LTD·Filed 1994·Granted Apr 16, 1996·150 cites·35 claims
- 1091US5452451ASystem for plural-string search with a parallel collation of a first partition of each string followed by finite automata matching of second partitionsHITACHI LTD·Filed 1994·Granted Sep 19, 1995·93 cites·31 claims
- 1189US5553226ASystem for displaying concept networksHITACHI LTD·Filed 1989·Granted Sep 3, 1996·99 cites·22 claims
- 1288US8321863B2Security management device and methodYAMAGUCHI AKIHIKO·Filed 2009·Granted Nov 27, 2012·16 cites·20 claims
- 1388US6511184B2Color image display apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jan 28, 2003·39 cites·24 claims
- 1488US6182062B1Knowledge based information retrieval systemHITACHI LTD·Filed 1996·Granted Jan 30, 2001·158 cites·15 claims
- 1588US5745745AText search method and apparatus for structured documentsHITACHI LTD·Filed 1995·Granted Apr 28, 1998·121 cites·22 claims
- 1687US8566391B2System and method for evaluating application suitability in execution environmentSAITO KOTA·Filed 2009·Granted Oct 22, 2013·22 cites·4 claims
- 1787US7184296B2Memory deviceFUJITSU LTD·Filed 2005·Granted Feb 27, 2007·19 cites·20 claims
- 1887US6508554B2Projection-type image display apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jan 21, 2003·35 cites·7 claims
- 1987US6078514ASemiconductor device and semiconductor system for high-speed data transferFUJITSU LTD·Filed 1998·Granted Jun 20, 2000·89 cites·43 claims
- 2087US5220625AInformation search terminal and systemHITACHI LTD·Filed 1992·Granted Jun 15, 1993·147 cites·25 claims
- 2187US5021989ADocument browsing apparatus with concurrent processing and retrievelHITACHI LTD·Filed 1990·Granted Jun 4, 1991·135 cites·12 claims
- 2286US5862094ASemiconductor device and a semiconductor memory deviceFUJITSU LTD·Filed 1997·Granted Jan 19, 1999·60 cites·7 claims
- 2386US5469354ADocument data processing method and apparatus for document retrievalHITACHI LTD·Filed 1992·Granted Nov 21, 1995·148 cites·50 claims
- 2485US9005435B2Structure for opening section, and water purification cartridgeTAKEDA HATSUMI·Filed 2011·Granted Apr 14, 2015·8 cites·7 claims
- 2584US5617364ASemiconductor memory deviceFUJITSU LTD·Filed 1995·Granted Apr 1, 1997·56 cites·12 claims
- 2683US11735246B2Semiconductor device performing refresh operationMICRON TECHNOLOGY INC·Filed 2021·Granted Aug 22, 2023·1 cites·19 claims
- 2780US8041591B2Business process operation method and systemHITACHI LTD·Filed 2007·Granted Oct 18, 2011·8 cites·12 claims
- 2880US5628003ADocument storage and retrieval system for storing and retrieving document image and full text dataHITACHI LTD·Filed 1993·Granted May 6, 1997·75 cites·11 claims
- 2980US5265242ADocument retrieval system for displaying document image data with inputted bibliographic items and character string selected from multiple character candidatesFUJISAWA HIROMICHI·Filed 1987·Granted Nov 23, 1993·67 cites·4 claims
- 3079US5907515ASemiconductor memory deviceFUJITSU LTD·Filed 1998·Granted May 25, 1999·41 cites·5 claims
- 3179US5140644ACharacter string retrieving system and methodHITACHI LTD·Filed 1991·Granted Aug 18, 1992·88 cites·12 claims
- 3278US6094647APresearch type document search method and apparatusHITACHI LTD·Filed 1997·Granted Jul 25, 2000·66 cites·10 claims
- 3377US6641717B2Water purifierMITSUBISHI RAYON CO·Filed 2001·Granted Nov 4, 2003·21 cites·11 claims
- 3477US5519857AHierarchical presearch type text search method and apparatus and magnetic disk unit used in the apparatusHITACHI LTD·Filed 1992·Granted May 21, 1996·59 cites·8 claims
- 3576US6236605B1Semiconductor integrated circuit and semiconductor memory device including overdriving sense amplifierFUJITSU LTD·Filed 2000·Granted May 22, 2001·23 cites·17 claims
- 3676US5454105ADocument information search method and systemHITACHI LTD·Filed 1993·Granted Sep 26, 1995·75 cites·30 claims
- 3776US4757302AImage display apparatusHITACHI LTD·Filed 1986·Granted Jul 12, 1988·52 cites·7 claims
- 3875US7185089B2Method and system for displaying integrated log informationHITACHI LTD·Filed 2003·Granted Feb 27, 2007·19 cites·20 claims
- 3975US5767712ASemiconductor deviceFUJITSU LTD·Filed 1997·Granted Jun 16, 1998·32 cites·8 claims
- 4074US5748953ADocument 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
- 4173US6666558B1Projection image displayMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Dec 23, 2003·15 cites·17 claims
- 4272US7316484B2Illuminator and projection image display employing itMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jan 8, 2008·13 cites·15 claims
- 4372US6626378B2Shower apparatusMITSUBISHI RAYON CO·Filed 2002·Granted Sep 30, 2003·12 cites·8 claims
- 4472US6181637B1Memory deviceFUJITSU LTD·Filed 2000·Granted Jan 30, 2001·19 cites·6 claims
- 4570US7872219B2Illumination device with plural color light sources and first and second integratorsPANASONIC CORP·Filed 2007·Granted Jan 18, 2011·3 cites·20 claims
- 4670US6337820B1Dynamic memory device performing stress testingFUJITSU LTD·Filed 2000·Granted Jan 8, 2002·17 cites·12 claims
- 4770US5978884ASemiconductor memory device having a single line data bus and latch circuits for improved pipeline operationsFUJITSU LTD·Filed 1997·Granted Nov 2, 1999·29 cites·8 claims
- 4870US5757983ADocument retrieval method and systemHITACHI LTD·Filed 1995·Granted May 26, 1998·82 cites·39 claims
- 4967US5168533AHierarchical presearch type text search method and apparatus and magnetic disk unit used in the apparatusHITACHI LTD·Filed 1990·Granted Dec 1, 1992·37 cites·56 claims
- 5066US12034159B2Non-aqueous electrolyte secondary battery, method of manufacturing same, and non-aqueous electrolyte secondary battery systemMAXELL LTD·Filed 2019·Granted Jul 9, 2024·0 cites·7 claims
Showing the top 50 of 107 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →