Inventor · disambiguated record
Shuzo Fujioka
Also filed as: FUJIOKA SHUZO
29 granted patents·3 pending applications·1,444 citations·filing 1988–2012
98Inventor score
Top patents by PatentIndex Score
32 records- 0196US5559996ALevel converter including wave-shaping circuit and emulator microcomputer incorporating the level converterMITSUBISHI ELECTRIC CORP·Filed 1994·Granted Sep 24, 1996·116 cites·8 claims
- 0293US5212373ANon-contact ic cardMITSUBISHI ELECTRIC CORP·Filed 1990·Granted May 18, 1993·98 cites·6 claims
- 0393US5056089AMemory deviceMITSUBISHI ELECTRIC CORP·Filed 1989·Granted Oct 8, 1991·155 cites·12 claims
- 0491US6198619B1Capacitor networkMITSUBISHI ELECTRIC CORP·Filed 1998·Granted Mar 6, 2001·82 cites·3 claims
- 0591US5604342ANoncontact card and card systemMITSUBISHI ELECTRIC CORP·Filed 1995·Granted Feb 18, 1997·124 cites·5 claims
- 0686US6040786ARecognition system and recognition method for non-contact IC cardsMITSUBISHI ELECTRIC CORP·Filed 1998·Granted Mar 21, 2000·97 cites·10 claims
- 0784US5047924AMicrocomputerMITSUBISHI ELECTRIC CORP·Filed 1988·Granted Sep 10, 1991·78 cites·2 claims
- 0879US5896325AIC card with error processing unit for sense amplifiersMITSUBISHI ELECTRIC CORP·Filed 1997·Granted Apr 20, 1999·44 cites·7 claims
- 0976US5220158ANon-contact ic card and method of using the sameMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Jun 15, 1993·54 cites·6 claims
- 1074US6480869B1Random-number generating circuit, non-contact IC card having random-number generating circuit, reader/writer, and method of testing an apparatus having the random generating circuitMITSUBISHI ELECTRIC CORP·Filed 1999·Granted Nov 12, 2002·68 cites·6 claims
- 1174US5727230AApparatus for electromagnetic communication between a computer and a non-contact IC cardMITSUBISHI ELECTRIC CORP·Filed 1995·Granted Mar 10, 1998·50 cites·11 claims
- 1270US5619529ANon-contact IC card and non-contact IC card reader/writerMITSUBISHI ELECTRIC CORP·Filed 1995·Granted Apr 8, 1997·40 cites·3 claims
- 1368US5719387AIC card including a memory, a password collating means and an access permitting means for permitting access to the memoryMITSUBISHI ELECTRIC CORP·Filed 1995·Granted Feb 17, 1998·110 cites·5 claims
- 1464US6725375B2Microcomputer and method and apparatus for changing the contents of the memory in the microcomputerRENESAS TECH CORP·Filed 2000·Granted Apr 20, 2004·10 cites·12 claims
- 1560US6658493B1Microcomputer exchanging data with host computerMITSUBISHI ELECTRIC CORP·Filed 2000·Granted Dec 2, 2003·7 cites·13 claims
- 1660US5796943ACommunication apparatusMITSUBISHI ELEC SEMICONDUCTOR·Filed 1996·Granted Aug 18, 1998·14 cites·20 claims
- 1755US6813191B2Microcomputer with nonvolatile memory protected against false erasing or writingRENESAS TECH CORP·Filed 2002·Granted Nov 2, 2004·8 cites·24 claims
- 1852US5019970AIC cardMITSUBISHI ELECTRIC CORP·Filed 1988·Granted May 28, 1991·18 cites·2 claims
- 1951US5661286ANoncontacting IC card system and gate facility and antenna mechanismMITSUBISHI ELECTRIC CORP·Filed 1995·Granted Aug 26, 1997·34 cites·10 claims
- 2050US5286962AIC card for prevention of fraudulent useMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Feb 15, 1994·20 cites·11 claims
- 2148US5698836AIC cardMITSUBISHI ELECTRIC CORP·Filed 1995·Granted Dec 16, 1997·58 cites·5 claims
- 2248US5206938AIc card with memory area protection based on address line restrictionMITSUBISHI ELECTRIC CORP·Filed 1989·Granted Apr 27, 1993·46 cites·7 claims
- 2348US4924465AMemory with function test of error detection/correction deviceMITSUBISHI ELECTRIC CORP·Filed 1988·Granted May 8, 1990·15 cites·5 claims
- 2446US5036460AMicroprocessor having miswriting preventing functionMITSUBISHI ELECTRIC CORP·Filed 1988·Granted Jul 30, 1991·42 cites·15 claims
- 2545US5837982AAntenna for non-contact IC card gate facilityMITSUBISHI ELECTRIC CORP·Filed 1997·Granted Nov 17, 1998·24 cites·8 claims
- 2645US5753902AIC card, reader/writerMITSUBISHI ELECTRIC CORP·Filed 1996·Granted May 19, 1998·10 cites·7 claims
- 2744US5016212AIC card having system ROM selection inhibitMITSUBISHI ELECTRIC CORP·Filed 1988·Granted May 14, 1991·13 cites·3 claims
- 2844US2004128523A1Information security microcomputer having an information securtiy function and authenticating an external deviceRENESAS TECH CORP·Filed 2003·Application pending·0 cites
- 2943US2003005321A1Information processing deviceFiled 2002·Application pending·0 cites
- 3043US2012221863A1Authentication systemOSAKA KOJI·Filed 2012·Application pending·0 cites
- 3138US5530274AMos capacitor, Vpp switch circuit, charge pump circuit, eeprom, microcomputer, and IC cardMITSUBISHI ELECTRIC CORP·Filed 1995·Granted Jun 25, 1996·5 cites·11 claims
- 3234US5222232AApparatus and method for monitoring prom access in a microcomputerMITSUBISHI ELECTRIC CORP·Filed 1988·Granted Jun 22, 1993·4 cites·1 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →