Inventor · disambiguated record
Takahisa Hatakeyama
Also filed as: HATAKEYAMA TAKAHISA
20 granted patents·7 pending applications·1,002 citations·filing 1998–2017
96Inventor score
Top patents by PatentIndex Score
27 records- 0195US6873975B1Content usage control system, content usage apparatus, computer readable recording medium with program recorded for computer to execute usage methodFUJITSU LTD·Filed 2000·Granted Mar 29, 2005·247 cites·16 claims
- 0294US6898708B2Device for reproducing dataFUJITSU LTD·Filed 2000·Granted May 24, 2005·123 cites·9 claims
- 0390US6999948B1Memory cardSANYO ELECTRIC CO·Filed 2000·Granted Feb 14, 2006·57 cites·10 claims
- 0489US6542468B1Apparatus method and storage medium for autonomous selection of a path by tuning response timesFUJITSU LTD·Filed 1998·Granted Apr 1, 2003·205 cites·37 claims
- 0588US7219227B2Data distribution system and recording device and data provision device used thereforHITACHI LTD·Filed 2000·Granted May 15, 2007·64 cites·23 claims
- 0687US7181629B1Data distribution system as well as data supply device terminal device and recording device for the sameSANYO ELECTRIC CO·Filed 2000·Granted Feb 20, 2007·66 cites·45 claims
- 0784US7383446B1Recording deviceFUJITSU LTD·Filed 2000·Granted Jun 3, 2008·31 cites·18 claims
- 0882US7340055B2Memory card and data distribution system using itSANYO ELECTRIC CO·Filed 2000·Granted Mar 4, 2008·35 cites·25 claims
- 0982US7191155B2License transmitting and distributing system under offline environment and method thereofFUJITSU LTD·Filed 2002·Granted Mar 13, 2007·39 cites·16 claims
- 1081US8051302B1Data distributing system and recording medium used for itFUJITSU LTD·Filed 2000·Granted Nov 1, 2011·21 cites·12 claims
- 1180US8413211B2Access control policy compliance check processTOKUTANI TAKASHI·Filed 2009·Granted Apr 2, 2013·16 cites·10 claims
- 1278US7203312B1Data reproduction apparatus and data reproduction moduleSANYO ELECTRIC CO·Filed 2000·Granted Apr 10, 2007·28 cites·41 claims
- 1377US7747538B2Memory cardFUJITSU LTD·Filed 2005·Granted Jun 29, 2010·5 cites·10 claims
- 1477US7549172B2Data processing apparatus for digital copyrights managementFUJITSU LTD·Filed 2004·Granted Jun 16, 2009·37 cites·22 claims
- 1572US7158641B2RecorderFUJITSU LTD·Filed 2000·Granted Jan 2, 2007·5 cites·14 claims
- 1666US7599890B2Content data storageSANYO ELECTRIC CO·Filed 2001·Granted Oct 6, 2009·11 cites·17 claims
- 1762US8266117B2Method and apparatus for tracing data in audit trail, and computer productHATAKEYAMA TAKAHISA·Filed 2006·Granted Sep 11, 2012·5 cites·9 claims
- 1859US7945517B2Data distribution system and recording device for use thereinSANYO ELECTRIC CO·Filed 2000·Granted May 17, 2011·7 cites·10 claims
- 1958US2004193546A1Confidential contents management methodFUJITSU LTD·Filed 2004·Application pending·0 cites
- 2053US2002147661A1Method of ordering and delivering picture dataFUJITSU LTD·Filed 2001·Application pending·0 cites
- 2151US2005120232A1Data terminal managing ciphered content data and license acquired by softwareFiled 2001·Application pending·0 cites
- 2243US2004093505A1Open generic tamper resistant CPU and application system thereofFUJITSU LTD·Filed 2003·Application pending·0 cites
- 2343US2004139315A1Private data protection distribution method and programFUJITSU LTD·Filed 2003·Application pending·0 cites
- 2443US2003233549A1File exchange apparatus, personal information entry/introduction server, transmission controlling method, and program thereforFUJITSU LTD·Filed 2003·Application pending·0 cites
- 2541US8448217B2Computer program, method, and system for access controlTOKUTANI TAKASHI·Filed 2007·Granted May 21, 2013·0 cites·18 claims
- 2641US2005076208A1Data terminal capable of transferring ciphered content data and license acquired by softwareFiled 2001·Application pending·0 cites
- 2726US10379832B2Software introduction support device and software introduction support methodFUJITSU LTD·Filed 2017·Granted Aug 13, 2019·0 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →