Inventor · disambiguated record
Katsumi Tokuda
Also filed as: TOKUDA KATSUMI
21 granted patents·19 pending applications·411 citations·filing 1994–2012
95Inventor score
Files withPANASONIC CORP8MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7OKAMOTO RYUICHI6HIGASHI AKIO3KITAZATO NAOHISA1
Top patents by PatentIndex Score
40 records- 0194US7940935B2Content playback apparatus, content playback method, computer program, key relay apparatus, and recording mediumPANASONIC CORP·Filed 2005·Granted May 10, 2011·19 cites·12 claims
- 0291US7096268B1Copyrighted data processing method and apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Aug 22, 2006·41 cites·3 claims
- 0389US7395245B2Content usage management system and server used in the systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jul 1, 2008·63 cites·8 claims
- 0488US7159244B2Audio data playback management system and method with editing apparatus and recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jan 2, 2007·49 cites·26 claims
- 0585US7721088B2Terminal device, server device, and content distribution systemPANASONIC CORP·Filed 2007·Granted May 18, 2010·9 cites·11 claims
- 0685US7571488B2Rights management terminal, server apparatus and usage information collection systemPANASONIC CORP·Filed 2005·Granted Aug 4, 2009·16 cites·20 claims
- 0783US5614899AApparatus and method for compressing textsMATSUSHITA ELECTRIC CO LTD·Filed 1994·Granted Mar 25, 1997·55 cites·40 claims
- 0882US7194091B2Content using systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Mar 20, 2007·35 cites·35 claims
- 0978US6947775B2System, method, program and storage medium for saving powerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Sep 20, 2005·21 cites·10 claims
- 1068US7493638B2Processing terminal, receiving terminal and received data processing systemPANASONIC CORP·Filed 2005·Granted Feb 17, 2009·3 cites·27 claims
- 1168US6009439AData retrieval support apparatus, data retrieval support method and medium storing data retrieval support programMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Dec 28, 1999·56 cites·10 claims
- 1262US7694149B2Method for judging use permission of information and content distribution system using the methodPANASONIC CORP·Filed 2004·Granted Apr 6, 2010·10 cites·11 claims
- 1360US7873987B2Content distribution system and distribution method, and content processing device and processing methodSONY CORP·Filed 2004·Granted Jan 18, 2011·4 cites·17 claims
- 1460US2006253400A1Digital content delivery systemOKAMOTO RYUICHI·Filed 2004·Application pending·0 cites
- 1559US7984508B2Contents using device, and contents using methodPANASONIC CORP·Filed 2005·Granted Jul 19, 2011·2 cites·30 claims
- 1657US8010688B2Content use management system, content use management method, and client devicePANASONIC CORP·Filed 2004·Granted Aug 30, 2011·5 cites·17 claims
- 1757US2002184515A1Rights management unitFiled 2002·Application pending·0 cites
- 1856US8260712B2Multimedia-type contents reproduction device and reproduction method, and recording medium having stored thereon data used for the sameYAMAMOTO MASAYA·Filed 2004·Granted Sep 4, 2012·2 cites·9 claims
- 1956US7620811B2Server device and program management systemPANASONIC CORP·Filed 2003·Granted Nov 17, 2009·5 cites·11 claims
- 2053US6229535B1File acceptance display apparatus, file acceptance display method, and storage medium that records program for executing file acceptance display methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted May 8, 2001·16 cites·15 claims
- 2151US9106797B2Content reproducing device and content reproducing methodOKAMOTO RYUICHI·Filed 2012·Granted Aug 11, 2015·0 cites·20 claims
- 2248US8166555B2Content reproducing device and content preproducing methodOKAMOTO RYUICHI·Filed 2005·Granted Apr 24, 2012·0 cites·21 claims
- 2348US2007130068A1Content delivery system and method, and content processing apparatus and methodKITAZATO NAOHISA·Filed 2004·Application pending·0 cites
- 2445US2004162846A1Content use management systemFiled 2004·Application pending·0 cites
- 2545US2004215708A1Content history log collecting systemFiled 2004·Application pending·0 cites
- 2645US2006085814A1Digital content reproduction device and digital content use control methodOKAMOTO RYUICHI·Filed 2004·Application pending·0 cites
- 2745US2004249759A1Content using apparatusFiled 2003·Application pending·0 cites
- 2845US2004186853A1Content reproduction apparatus, license issue server, and content reproduction systemFiled 2004·Application pending·0 cites
- 2944US8521651B2Digital content reproducing apparatus and method thereofOKAMOTO RYUICHI·Filed 2004·Granted Aug 27, 2013·0 cites·10 claims
- 3044US2004143661A1Content history log collecting systemFiled 2004·Application pending·0 cites
- 3144US2004133448A1Content history log collecting system, terminal device and server deviceFiled 2003·Application pending·0 cites
- 3244US2007112681A1Content distribution system, license distribution method and terminal deviceNIWANO SATOSHI·Filed 2004·Application pending·0 cites
- 3343US2006195405A1Digital content distribution systemMIURA KOUJI·Filed 2004·Application pending·0 cites
- 3442US2008040738A1Content Reproduction TerminalOKAMOTO RYUICHI·Filed 2005·Application pending·0 cites
- 3542US2002159592A1Content reception terminal and recording mediumFiled 2001·Application pending·0 cites
- 3642US2006053232A1Digital content distribution system, right management server and user terminalONODA SEN ICHI·Filed 2004·Application pending·0 cites
- 3738US2007124252A1Reception device, transmission device, security module, and digital right management systemHIGASHI AKIO·Filed 2005·Application pending·0 cites
- 3837US2007165854A1Secure system, secure device, terminal apparatus, method and program thereforHIGASHI AKIO·Filed 2005·Application pending·0 cites
- 3936US2003028454A1Device and method for managing content usage rightFiled 2002·Application pending·0 cites
- 4036US2008152150A1Information Distribution SystemHIGASHI AKIO·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →