Inventor
YUKAWA AKIRA
JP22 patents
⚠️ This page may combine multiple inventors who share the name “YUKAWA AKIRA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
16 patentsUS4766394AAug 23, 1988
Operational amplifier circuit having wide operating range
NEC CORP66 citations96
US6208208B1Mar 27, 2001
Operationally amplifying method and operational amplifier
NEC CORP36 citations92
US6104179AAug 15, 2000
Low-power consumption noise-free voltage regulator
NEC CORP30 citations92
US5321370AJun 14, 1994
Operational amplifier with common-mode feedback amplifier circuit
NEC CORP27 citations92
US5136181AAug 4, 1992
Power-on-reset circuit
NEC CORP31 citations92
US5010347AApr 23, 1991
Analog-to-digital converter having an excellent signal-to-noise ratio for small signals
NEC CORP50 citations92
US4764753AAug 16, 1988
Analog to digital converter
NEC CORP54 citations92
US4661802AApr 28, 1987
Digital-to-analog converter
NEC CORP29 citations92
US6144232ANov 7, 2000
Chopper type voltage comparing circuit capable of correctly determining output polarity, and voltage comparing method
NEC CORP21 citations90
US5959469ASep 28, 1999
Chopper comparator showing high speed and low power operations free of malfunction under variation of logical threshold voltage of invertor
NEC CORP17 citations82
US4602167AJul 22, 1986
Voltage comparator circuit
NEC CORP25 citations82
US5559356ASep 24, 1996
Semiconductor device with large substrate contact region
NEC CORP14 citations74
US5544081AAug 6, 1996
Output filter for oversampling digital-to-analog converter
NEC CORP16 citations74
US5206648AApr 27, 1993
Oversampling da converter with operational amplifier driven by a single reference voltage
NEC CORP11 citations74
US4963834AOct 16, 1990
Operational amplifier
NEC CORP8 citations74
US5455783AOct 3, 1995
Subsampling filter comprising two filters in succession
NEC CORP3 citations63
NEC ELECTRONICS CORP
4 patentsUS7080106B2Jul 18, 2006
Random number generating method and random number generating device
NEC ELECTRONICS CORP16 citations84
US7129882B2Oct 31, 2006
Successive approximation ad converter having pulse noise suppression
NEC ELECTRONICS CORP7 citations74
US6581016B1Jun 17, 2003
Apparatus for accurately measuring impedance and method used therein
NEC ELECTRONICS CORP12 citations74
US7605615B2Oct 20, 2009
Voltage comparator circuit
NEC ELECTRONICS CORP2 citations63