Inventor · disambiguated record
Naoki Endoh
Also filed as: ENDOH NAOKI
24 granted patents·2 pending applications·1,369 citations·filing 1984–2008
97Inventor score
Files withTOSHIBA KK20MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3TOKYO SHIBAURA ELECTRIC CO1VERANCE CORP1
Top patents by PatentIndex Score
26 records- 0197US6301663B1Copy protection apparatus and information recording medium used in this copy protection apparatusTOSHIBA KK·Filed 1998·Granted Oct 9, 2001·139 cites·10 claims
- 0296US6347145B2Method and apparatus of enciphering and deciphering data using keys enciphered and deciphered with other keysTOSHIBA KK·Filed 1997·Granted Feb 12, 2002·97 cites·23 claims
- 0394US6888943B1Multimedia adaptive scrambling system (MASS)VERANCE CORP·Filed 2000·Granted May 3, 2005·106 cites·22 claims
- 0491US6650754B2Broadcast reception device and contract management device using common master key in conditional access broadcast systemTOSHIBA KK·Filed 2002·Granted Nov 18, 2003·63 cites·23 claims
- 0591US5170388AImage/audio information recording/reproduction apparatus with built-in semiconductor memoryTOSHIBA KK·Filed 1990·Granted Dec 8, 1992·118 cites·18 claims
- 0688US6438692B2Copy protection apparatus and information recording medium used in this copy protection apparatusTOSHIBA KK·Filed 2001·Granted Aug 20, 2002·43 cites·9 claims
- 0788US6085323AInformation processing system having function of securely protecting confidential informationTOSHIBA KK·Filed 1997·Granted Jul 4, 2000·224 cites·56 claims
- 0883US7433474B2Method and apparatus of enciphering and deciphering data using keys enciphered and deciphered with other keysTOSHIBA KK·Filed 2002·Granted Oct 7, 2008·13 cites·10 claims
- 0983US5253120ARecording/reproducing apparatus for more efficient recording and reproduction of audio and video signalsTOSHIBA KK·Filed 1990·Granted Oct 12, 1993·35 cites·15 claims
- 1082US6463155B1Broadcast reception device and contract management device using common master key in conditional access broadcast systemTOSHIBA KK·Filed 1998·Granted Oct 8, 2002·102 cites·23 claims
- 1182US5819103AInformation recording/reproducing apparatus and methodTOSHIBA KK·Filed 1994·Granted Oct 6, 1998·90 cites·2 claims
- 1279US6556679B1Copy-guard system and information recording medium used in the same systemTOSHIBA KK·Filed 1998·Granted Apr 29, 2003·66 cites·40 claims
- 1379US6009174ASecret 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
- 1476US7096357B1Cryptographic communication terminal, cryptographic communication center apparatus, cryptographic communication system, and storage mediumTOSHIBA KK·Filed 2000·Granted Aug 22, 2006·25 cites·17 claims
- 1575US5984174AMethod of printing bar codes on pieces to deliver, and method and system for encoding and decoding bar codesTOSHIBA KK·Filed 1996·Granted Nov 16, 1999·55 cites·58 claims
- 1674US6751321B1Digital data reproduction deviceTOSHIBA KK·Filed 1998·Granted Jun 15, 2004·47 cites·18 claims
- 1766US6650752B2Broadcast reception device and contract management device using common master key in conditional access broadcast systemTOSHIBA KK·Filed 2002·Granted Nov 18, 2003·4 cites·23 claims
- 1862US2008279383A1Method and apparatus of enciphering and deciphering data using multiple keysTOSHIBA KK·Filed 2008·Application pending·0 cites
- 1953US5042037ADigital data modulation circuit having a DC component suppression functionTOSHIBA KK·Filed 1989·Granted Aug 20, 1991·8 cites·10 claims
- 2052US6160890ASecret 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 1999·Granted Dec 12, 2000·24 cites·19 claims
- 2151US6151394AEncrypted communication system that limits the damage caused when a secret key has been leakedMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Nov 21, 2000·28 cites·3 claims
- 2250US5818031ABar code encoding system using four-state codesTOSHIBA KK·Filed 1996·Granted Oct 6, 1998·15 cites·13 claims
- 2346US4553131AMethod and apparatus for encoding a binary data stream into a binary code streamTOKYO SHIBAURA ELECTRIC CO·Filed 1984·Granted Nov 12, 1985·5 cites·10 claims
- 2444US5101394AData reproducing apparatusTOSHIBA KK·Filed 1989·Granted Mar 31, 1992·5 cites·7 claims
- 2539US2002025039A1Recording method, producing method, playback method, apparatus, and information recording mediumFiled 2001·Application pending·0 cites
- 2629US7233667B1Record medium, record medium manufacturing device, computer readable record medium on which program is recorded, and data presentation deviceTOSHIBA KK·Filed 1999·Granted Jun 19, 2007·0 cites·3 claims
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