SONY/TEKTRONIX CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G05F SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 199
 
  
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 1241

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6130708 Trigger generator and waveform monitorJan 22, 99Oct 10, 00[H04N]
5319303 Current source circuitNov 14, 92Jun 07, 94[G05F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6484111 Real time signal analyzerExpiredJul 30, 99Nov 19, 02[G01R]
6377617 Real-time signal analyzerExpiredJun 04, 99Apr 23, 02[H04B]
6356067 Wide band signal analyzer with wide band and narrow band signal processorsExpiredAug 05, 99Mar 12, 02[G01L, G01R]
6340883 Wide band IQ splitting apparatus and calibration method therefor with balanced amplitude and phase between I and QExpiredAug 31, 99Jan 22, 02[G01R]
6255619 Lens, semiconductor laser element, device for machining the lens and element, process for producing semiconductor laser element, optical element, and device and method for machining optical elementExpiredMar 08, 99Jul 03, 01[B23K]
5637990 High speed, large-current power control apparatusExpiredApr 26, 96Jun 10, 97[G05F, H02H]
5598068 Light emitting apparatus comprising multiple groups of LEDs each containing multiple LEDsExpiredMar 10, 95Jan 28, 97[H05B]
5596309 Reduced inductance coaxial resistorExpiredJul 22, 94Jan 21, 97[H01C]
5589952 Disc high resolution scannerExpiredFeb 27, 95Dec 31, 96[H04N]
5568035 Variable-capacitance power supply apparatusExpiredSep 28, 94Oct 22, 96[H02M]
5563541 Load current detection circuitExpiredMay 11, 95Oct 08, 96[H03K]
5455502 High speed, large-current power control circuitExpiredSep 07, 94Oct 03, 95[H01H]
5424667 Variable frequency signal generating methodExpiredOct 15, 92Jun 13, 95[H03L, H03B]
5373309 Method and apparatus for setting variable to desired valueExpiredDec 03, 92Dec 13, 94[G09G]
5011265 Optical attenuatorExpiredFeb 07, 90Apr 30, 91[B02B]
4818934 Apparatus for measuring characteristics of electronic devicesExpiredJan 05, 88Apr 04, 89[G01R]
4816897 Chrominance to luminance delay and gain measurement displayExpiredJan 11, 88Mar 28, 89[H04N]
4800571 Timing jitter measurement displayExpiredJan 11, 88Jan 24, 89[H04B]
4736189 Method and apparatus for calibrating an analog-to-digital conversion apparatusExpiredOct 08, 86Apr 05, 88[H03M]
4727318 Apparatus for measuring characteristics of electronic devicesExpiredSep 27, 85Feb 23, 88[G01R]

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