Inventor · disambiguated record
Atsuo Yamaguchi
Also filed as: YAMAGUCHI ATSUO
36 granted patents·4 pending applications·1,187 citations·filing 1988–2012
98Inventor score
Files withMITSUBISHI ELECTRIC CORP27RENESAS TECH CORP6FUKUSHIMA KAZUHIKO3MIYAUCHI SHIGENORI2TSURUTA HIROKAZU2
Top patents by PatentIndex Score
40 records- 0194US6107864ACharge pump circuitMITSUBISHI ELECTRIC CORP·Filed 1999·Granted Aug 22, 2000·142 cites·8 claims
- 0293US5056089AMemory deviceMITSUBISHI ELECTRIC CORP·Filed 1989·Granted Oct 8, 1991·155 cites·12 claims
- 0391US5874725ANon-contact IC card with phase variation detectorMITSUBISHI ELECTRIC CORP·Filed 1997·Granted Feb 23, 1999·100 cites·2 claims
- 0490US7424500B2Random number generator with ring oscillation circuitRENESAS TECH CORP·Filed 2004·Granted Sep 9, 2008·45 cites·19 claims
- 0589US5535160ASemiconductor integrated circuitMITSUBISHI ELECTRIC CORP·Filed 1994·Granted Jul 9, 1996·60 cites·3 claims
- 0688US8260835B2Random number generator with ring oscillation circuitFUKUSHIMA KAZUHIKO·Filed 2008·Granted Sep 4, 2012·17 cites·4 claims
- 0788US5801372ANon-contact IC card with antenna switching circuitMITSUBISHI ELECTRIC CORP·Filed 1997·Granted Sep 1, 1998·81 cites·7 claims
- 0888US5068521ANon-contact ic cardMITSUBISHI ELECTRIC CORP·Filed 1989·Granted Nov 26, 1991·74 cites·9 claims
- 0986US5698838ANon-contact IC card including antenna circuit with adjustable resonant frequencyMITSUBISHI ELECTRIC CORP·Filed 1995·Granted Dec 16, 1997·72 cites·8 claims
- 1084US5047924AMicrocomputerMITSUBISHI ELECTRIC CORP·Filed 1988·Granted Sep 10, 1991·78 cites·2 claims
- 1175US9052975B2Random number generator with ring oscillation circuitFUKUSHIMA KAZUHIKO·Filed 2012·Granted Jun 9, 2015·4 cites·3 claims
- 1275US5831257ANon-contact IC card including phase-locked loop circuitryMITSUBISHI ELECTRIC CORP·Filed 1997·Granted Nov 3, 1998·34 cites·1 claims
- 1370US5226167AMicrocomputer circuit for attenuating oscillations in a resonant circuit by reversing phase and feeding back resonant circuit output oscillation voltageMITSUBISHI ELECTRIC CORP·Filed 1990·Granted Jul 6, 1993·40 cites·6 claims
- 1465US5375083ASemiconductor integrated circuit including a substrate having a memory cell array surrounded by a well structureMITSUBISHI ELECTRIC CORP·Filed 1993·Granted Dec 20, 1994·23 cites·2 claims
- 1564US6747548B1Non-contact IC card system and non-contact IC cardMITSUBISHI ELECTRIC CORP·Filed 1997·Granted Jun 8, 2004·28 cites·4 claims
- 1659US7171437B2Residue calculating unit immune to power analysisRENESAS TECH CORP·Filed 2003·Granted Jan 30, 2007·5 cites·9 claims
- 1757US5942926APLL circuitMITSUBISHI ELECTRIC CORP·Filed 1996·Granted Aug 24, 1999·20 cites·13 claims
- 1856US5594692ASemiconductor integrated circuitMITSUBISHI ELECTRIC CORP·Filed 1996·Granted Jan 14, 1997·14 cites·2 claims
- 1954US5308968ANon-contact IC card which actively attenuates its resonance circuit as it receives dataMITSUBISHI ELECTRIC CORP·Filed 1992·Granted May 3, 1994·13 cites·6 claims
- 2053US5517460ASemiconductor integrated circuit and IC card using the sameMITSUBISHI ELECTRIC CORP·Filed 1993·Granted May 14, 1996·15 cites·10 claims
- 2153US5365047AIC card with clock signal input controlMITSUBISHI ELECTRIC CORP·Filed 1993·Granted Nov 15, 1994·18 cites·4 claims
- 2252US5019970AIC cardMITSUBISHI ELECTRIC CORP·Filed 1988·Granted May 28, 1991·18 cites·2 claims
- 2350US5432328ANon-contact IC card detecting power-on signal by receiving external input signal having voltage magnitude outside power supply voltage rangeMITSUBISHI ELECTRIC CORP·Filed 1990·Granted Jul 11, 1995·16 cites·6 claims
- 2450US2007014396A1Encoding/decoding circuitRENESAS TECH CORP·Filed 2006·Application pending·0 cites
- 2548US8559634B2Encoding/decoding circuitMIYAUCHI SHIGENORI·Filed 2012·Granted Oct 15, 2013·0 cites·3 claims
- 2648US4924465AMemory with function test of error detection/correction deviceMITSUBISHI ELECTRIC CORP·Filed 1988·Granted May 8, 1990·15 cites·5 claims
- 2747US5039850AIC cardMITSUBISHI ELECTRIC CORP·Filed 1990·Granted Aug 13, 1991·18 cites·3 claims
- 2846US8619991B2Encoding/decoding circuitMIYAUCHI SHIGENORI·Filed 2011·Granted Dec 31, 2013·0 cites·3 claims
- 2946US5396056ANon-contact IC card having an active attenuation circuitMITSUBISHI ELECTRIC CORP·Filed 1994·Granted Mar 7, 1995·10 cites·6 claims
- 3046US5159183AIc cardMITSUBISHI ELECTRIC CORP·Filed 1989·Granted Oct 27, 1992·13 cites·3 claims
- 3146US5036460AMicroprocessor having miswriting preventing functionMITSUBISHI ELECTRIC CORP·Filed 1988·Granted Jul 30, 1991·42 cites·15 claims
- 3246US2005052280A1Microcomputer having security functionRENESAS TECH CORP·Filed 2004·Application pending·0 cites
- 3345US2005055531A1Non-volatile memory control device capable of recovering data even when data writing is interruptedRENESAS TECH CORP·Filed 2004·Application pending·0 cites
- 3444US8140858B2Data processing apparatusTSURUTA HIROKAZU·Filed 2009·Granted Mar 20, 2012·0 cites·9 claims
- 3544US7471789B2Encryption circuit achieving higher operation speedRENESAS TECH CORP·Filed 2003·Granted Dec 30, 2008·0 cites·6 claims
- 3644US5016212AIC card having system ROM selection inhibitMITSUBISHI ELECTRIC CORP·Filed 1988·Granted May 14, 1991·13 cites·3 claims
- 3743US2002181704A1Data encryption circuit pre-holding next data to be operated in bufferMITSUBISHI ELECTRIC CORP·Filed 2002·Application pending·0 cites
- 3840US9092619B2Data processing apparatusTSURUTA HIROKAZU·Filed 2011·Granted Jul 28, 2015·0 cites·8 claims
- 3938US8848459B2Semiconductor deviceFUKUSHIMA KAZUHIKO·Filed 2012·Granted Sep 30, 2014·0 cites·10 claims
- 4032US5160856AReference voltage regulator semiconductor integrated circuitMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Nov 3, 1992·4 cites·10 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →