Inventor · disambiguated record
Makoto Tatebayashi
Also filed as: TATEBAYASHI MAKOTO · YAMAMICHI LEGAL REPRESENTATIVE · YAMAMICHI LEGAL REPRESENTATIVE KEIKO · YAMAMICHI MASAMI
90 granted patents·9 pending applications·3,939 citations·filing 1991–2013
99Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD60PANASONIC CORP21NAKANO TOSHIHISA6HIROTA TERUTO2TOSHIBA KK2
Top patents by PatentIndex Score
99 records- 0198US6859535B1Digital content protection systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Feb 22, 2005·197 cites·19 claims
- 0298US6606707B1Semiconductor memory cardMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Aug 12, 2003·261 cites·4 claims
- 0398US6289102B1Apparatus and method for preventing unauthorized use of information recorded on an information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Sep 11, 2001·213 cites·28 claims
- 0496US6047103AData transmitter, data transmitting method, data receiver, information processor, and information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Apr 4, 2000·144 cites·12 claims
- 0595US6581160B1Revocation information updating method, revocation information updating apparatus and storage mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jun 17, 2003·45 cites·18 claims
- 0694US7484090B2Encryption apparatus, decryption apparatus, secret key generation apparatus, and copyright protection systemPANASONIC CORP·Filed 2004·Granted Jan 27, 2009·48 cites·91 claims
- 0794US7120251B1Data player, digital contents player, playback system, data embedding apparatus, and embedded data detection apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Oct 10, 2006·66 cites·8 claims
- 0894US7065648B1Mutual authentication method, recording apparatus, reproducing apparatus, and recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jun 20, 2006·55 cites·7 claims
- 0994US6687683B1Production protection system dealing with contents that are digital productionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Feb 3, 2004·204 cites·31 claims
- 1093US7181008B1Contents management method, content management apparatus, and recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Feb 20, 2007·45 cites·3 claims
- 1193US7062652B2Semiconductor memory card, data reading apparatus and data reading/reproducing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jun 13, 2006·51 cites·12 claims
- 1292US7298845B2Digital content protection systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Nov 20, 2007·28 cites·15 claims
- 1392US6789192B2Semiconductor memory card, data reading apparatus, and data reading/reproducing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Sep 7, 2004·55 cites·5 claims
- 1491US7555779B2Copyright protection system, recording device, and reproduction devicePANASONIC CORP·Filed 2002·Granted Jun 30, 2009·27 cites·15 claims
- 1591US7505584B2Contents management method, contents management apparatus, and recording mediumTOSHIBA KK·Filed 2006·Granted Mar 17, 2009·12 cites·3 claims
- 1690US7137012B1Storage medium and contents protection method using the storage mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Nov 14, 2006·81 cites·12 claims
- 1790US6550009B1Encryption system for distributing a common crypt keyMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Apr 15, 2003·71 cites·3 claims
- 1890US5442707AMethod for generating and verifying electronic signatures and privacy communication using elliptic curvesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Aug 15, 1995·181 cites·70 claims
- 1989US6995692B2Data converter and method thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Feb 7, 2006·56 cites·16 claims
- 2089US6917684B1Method of encryption and decryption with block number dependant key sets, each set having a different number of keysTOSHIBA KK·Filed 2000·Granted Jul 12, 2005·69 cites·10 claims
- 2189US6862582B2Production protection system dealing with contents that are digital productionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Mar 1, 2005·49 cites·4 claims
- 2289US6058476AEncryption apparatus for ensuring security in communication between devicesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted May 2, 2000·233 cites·33 claims
- 2388US6971022B1Cryptographic apparatus for performing cryptography on a specified area of content dataMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Nov 29, 2005·56 cites·31 claims
- 2488US5272755APublic key cryptosystem with an elliptic curveMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Dec 21, 1993·164 cites·6 claims
- 2587US7996914B2Semiconductor memory card and data reading apparatus, and data reading/reproducing apparatusPANASONIC CORP·Filed 2006·Granted Aug 9, 2011·12 cites·12 claims
- 2687US7647646B2Information input/output system, key management device, and user devicePANASONIC CORP·Filed 2003·Granted Jan 12, 2010·23 cites·5 claims
- 2787US7395425B2Data protection system that protects data by encrypting the dataMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jul 1, 2008·26 cites·14 claims
- 2886US7373503B2Public key certificate revocation list generation apparatus, revocation judgement apparatus, and authentication systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted May 13, 2008·21 cites·24 claims
- 2986US6850914B1Revocation information updating method, revocation informaton updating apparatus and storage mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Feb 1, 2005·39 cites·4 claims
- 3085US7400725B1Information recording medium for recording a scrambled part of content information, and method and apparatus for reproducing information recorded thereinMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jul 15, 2008·19 cites·3 claims
- 3185US6891950B1Extended key generator, encryption/decryption unit, extended key generation method, and storage mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted May 10, 2005·53 cites·4 claims
- 3283US8127368B2Semiconductor memory card and data reading apparatus, and data reading/reproducing apparatusHIROTA TERUTO·Filed 2007·Granted Feb 28, 2012·9 cites·12 claims
- 3383US6028937ACommunication device which performs two-way encryption authentication in challenge response formatMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Feb 22, 2000·143 cites·22 claims
- 3482US7272229B2Digital work protection system, key management apparatus, and user apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Sep 18, 2007·35 cites·10 claims
- 3581US7296147B2Authentication system and key registration apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Nov 13, 2007·35 cites·6 claims
- 3681US6289314B1Pay information providing system for descrambling information from plural sources and rescrambling the information before sending to a terminal or terminalsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Sep 11, 2001·66 cites·6 claims
- 3780US7813512B2Encrypted communication system and communication devicePANASONIC CORP·Filed 2004·Granted Oct 12, 2010·30 cites·3 claims
- 3880US7577251B2Data player, digital contents player, playback system, data embedding apparatus, and embedded data detection apparatusPANASONIC CORP·Filed 2006·Granted Aug 18, 2009·5 cites·4 claims
- 3980US7426494B2Rental systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Sep 16, 2008·14 cites·17 claims
- 4079US6009174ASecret key transfer method which is highly secure and can restrict the damage caused when the secret key is leaked or decodedMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Dec 28, 1999·57 cites·14 claims
- 4176US7542568B2Encryption device a decrypting device a secret key generation device a copyright protection system and a cipher communication devicePANASONIC CORP·Filed 2002·Granted Jun 2, 2009·20 cites·25 claims
- 4276US7254705B2Service providing system in which services are provided from service provider apparatus to service user apparatus via networkMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Aug 7, 2007·23 cites·16 claims
- 4376US5199070AMethod for generating a public keyMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Mar 30, 1993·83 cites·50 claims
- 4475US7155607B2Method for authentication between apparatuses using challenge and response systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Dec 26, 2006·21 cites·16 claims
- 4573US6034618ADevice authentication system which allows the authentication function to be changedMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Mar 7, 2000·83 cites·28 claims
- 4673US5351297AMethod of privacy communication using elliptic curvesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Sep 27, 1994·71 cites·12 claims
- 4773US5351299AApparatus and method for data encryption with block selection keys and data encryption keysMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Sep 27, 1994·67 cites·30 claims
- 4871US7707430B2Digital content protection systemPANASONIC CORP·Filed 2007·Granted Apr 27, 2010·1 cites·4 claims
- 4971US7359511B2Encryption transmission systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Apr 15, 2008·10 cites·18 claims
- 5071US7246247B2Secure deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jul 17, 2007·11 cites·5 claims
Showing the top 50 of 99 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →