Inventor · disambiguated record
Akira Yukawa
Also filed as: YUKAWA AKIRA
22 granted patents·525 citations·filing 1982–2005
96Inventor score
Top patents by PatentIndex Score
22 records- 0195US4766394AOperational amplifier circuit having wide operating rangeNEC CORP·Filed 1987·Granted Aug 23, 1988·66 cites·4 claims
- 0292US4511810AVoltage comparator circuitNIPPON ELECTRIC CO·Filed 1982·Granted Apr 16, 1985·44 cites·18 claims
- 0388US4764753AAnalog to digital converterNEC CORP·Filed 1985·Granted Aug 16, 1988·54 cites·6 claims
- 0487US5010347AAnalog-to-digital converter having an excellent signal-to-noise ratio for small signalsNEC CORP·Filed 1988·Granted Apr 23, 1991·50 cites·8 claims
- 0577US5136181APower-on-reset circuitNEC CORP·Filed 1991·Granted Aug 4, 1992·31 cites·5 claims
- 0676US6208208B1Operationally amplifying method and operational amplifierNEC CORP·Filed 1999·Granted Mar 27, 2001·36 cites·15 claims
- 0776US6104179ALow-power consumption noise-free voltage regulatorNEC CORP·Filed 1999·Granted Aug 15, 2000·30 cites·31 claims
- 0875US5321370AOperational amplifier with common-mode feedback amplifier circuitNEC CORP·Filed 1993·Granted Jun 14, 1994·27 cites·5 claims
- 0975US4661802ADigital-to-analog converterNEC CORP·Filed 1985·Granted Apr 28, 1987·29 cites·8 claims
- 1074US4602167AVoltage comparator circuitNEC CORP·Filed 1983·Granted Jul 22, 1986·25 cites·11 claims
- 1172US7129882B2Successive approximation ad converter having pulse noise suppressionNEC ELECTRONICS CORP·Filed 2005·Granted Oct 31, 2006·7 cites·9 claims
- 1272US7080106B2Random number generating method and random number generating deviceNEC ELECTRONICS CORP·Filed 2002·Granted Jul 18, 2006·16 cites·15 claims
- 1364US6144232AChopper type voltage comparing circuit capable of correctly determining output polarity, and voltage comparing methodNEC CORP·Filed 1999·Granted Nov 7, 2000·21 cites·30 claims
- 1459US5959469AChopper comparator showing high speed and low power operations free of malfunction under variation of logical threshold voltage of invertorNEC CORP·Filed 1997·Granted Sep 28, 1999·17 cites·11 claims
- 1554US5544081AOutput filter for oversampling digital-to-analog converterNEC CORP·Filed 1994·Granted Aug 6, 1996·16 cites·5 claims
- 1653US5559356ASemiconductor device with large substrate contact regionNEC CORP·Filed 1995·Granted Sep 24, 1996·14 cites·16 claims
- 1752US7605615B2Voltage comparator circuitNEC ELECTRONICS CORP·Filed 2005·Granted Oct 20, 2009·2 cites·5 claims
- 1852US7250861B2Crime-prevention lighting deviceOPTEX CO LTD·Filed 2003·Granted Jul 31, 2007·6 cites·7 claims
- 1950US4963834AOperational amplifierNEC CORP·Filed 1989·Granted Oct 16, 1990·8 cites·4 claims
- 2047US6581016B1Apparatus for accurately measuring impedance and method used thereinNEC ELECTRONICS CORP·Filed 1999·Granted Jun 17, 2003·12 cites·21 claims
- 2145US5206648AOversampling da converter with operational amplifier driven by a single reference voltageNEC CORP·Filed 1992·Granted Apr 27, 1993·11 cites·8 claims
- 2234US5455783ASubsampling filter comprising two filters in successionNEC CORP·Filed 1993·Granted Oct 3, 1995·3 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →