Inventor
NAGAOKA YOSHITOMI
JP33 patents
⚠️ This page may combine multiple inventors who share the name “NAGAOKA YOSHITOMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
32 patentsUS4591736AMay 27, 1986
Pulse signal amplitude storage-holding apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD115 citations95
US6614846B1Sep 2, 2003
Method and apparatus for transmitting, encoding and decoding video signal and recording/reproducing method of optical disc
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD41 citations92
US4621292ANov 4, 1986
Automatic focusing device for a video camera
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD29 citations92
US4673274AJun 16, 1987
Automatic focusing apparatus for camera
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD26 citations91
US6661798B2Dec 9, 2003
Digital home information integrating system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD34 citations90
US4842388AJun 27, 1989
Single optical lense with diffraction limit converging capability and wide field angle
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations82
US4453178AJun 5, 1984
Projection television apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD25 citations82
US4306247ADec 15, 1981
Color signal controlling apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations82
US4873583AOct 10, 1989
Magnetic tape recording/reproducing apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations74
US4792218ADec 20, 1988
Projection lens for high definition TV
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations74
US4690515ASep 1, 1987
Compact projection lens
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations74
US4548480AOct 22, 1985
Projection lens apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations74
US4400722AAug 23, 1983
Optical configuration for projection television apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations74
US4810076AMar 7, 1989
Selective shading device and an optical device using the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations73
US4704009ANov 3, 1987
Projection lens
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations73
US4167750ASep 11, 1979
Color-difference signal modifying apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations72
US4127868ANov 28, 1978
Circuitry for nonlinear processing of reference white on color image
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations72
US7006507B2Feb 28, 2006
Digital home information integrating system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations71
US4850692AJul 25, 1989
Semiconductor light position detector for rangefinder
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations71
US4849813AJul 18, 1989
Video camera with high-speed scanning
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations71
US4864421ASep 5, 1989
System for connecting a video signal recording/reproducing apparatus and a television receiver
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations70
US7068913B1Jun 27, 2006
Data processing system, recording/reproducing device, data processing method and file management method
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations63
US4811117AMar 7, 1989
Video tape recorder for recording and reproducing two-channel component signals of a video signal on a magnetic tape using two pair of heads and alternately delayed signals
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations63
US4199779AApr 22, 1980
VIR-Signal processing circuitry for video tape recorder
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations63
US5130862AJul 14, 1992
Coding apparatus for converting digital signals into ternary signals whose dc component is equal to zero
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations62
US4811119AMar 7, 1989
Apparatus for high-density minimal crosstalk recording and reproducing of terminance and chrominance signals using a magnetic tape
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations62
US4761690AAug 2, 1988
Video tape recorder with particular format chrominance and luminance information
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations62
US4758764AJul 19, 1988
Light-emitting device for automatic focus adjustment apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations62
US4370673AJan 25, 1983
Signal generator for a color television transmitting system
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations62
US4001879AJan 4, 1977
Automatic hue-control apparatus for color television receivers
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations62
US4261009AApr 7, 1981
VIR Control of hue and saturation in RGB demodulator
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations61
US4972272ANov 20, 1990
Multi-channel video tape recorder/player having multiple pairs of video heads
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD1 citations52