Nokia Unterhaltungselektronik GmbH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01J ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 1127
 
  
 
H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS 1106

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5334410 Method of lacquering the luminophore layer of a color picture tubeNov 05, 91Aug 02, 94[D05D]
5150419 Calotte-type treble loudspeakerSep 19, 91Sep 22, 92[H04R]
5148081 In-line color picture tubeFeb 28, 91Sep 15, 92[H01J]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5430551 Video recorder with distortion corrector circuitExpiredOct 12, 93Jul 04, 95[H04N]
5267093 Video recorder having phase-displaced video recording channelsExpiredApr 19, 91Nov 30, 93[G11B]
5188870 High-resolution, passively controlled liquid crystal displayExpiredMay 17, 91Feb 23, 93[G02F]
5173812 Videorecorder for adding data signals on previously recorded signals, having playback signal phase comparator meansExpiredApr 19, 91Dec 22, 92[H04N]
5172187 Method of determining the pretilt angle of liquid crystal moleculesExpiredApr 05, 91Dec 15, 92[G01N]
5164697 Input keyboard for an electronic appliance in entertainment electronicsExpiredApr 03, 91Nov 17, 92[H01C]
5157558 Video recording unit featuring switching logic means for generating phase shifting matrix groupsExpiredAug 09, 90Oct 20, 92[H04N]
5120623 Method of producing a substrate plate for a liquid crystal cell with black matrix areasExpiredDec 07, 90Jun 09, 92[G03C]
5108332 Method of manufacturing a liquid-crystal cellExpiredDec 28, 90Apr 28, 92[H01J]
5106441 Method and jig for LCD-productionExpiredJan 25, 90Apr 21, 92[B32B]
5102554 Method of recovering phosphor for picture tubesExpiredJan 11, 91Apr 07, 92[C09K, B01D]
5102685 Method and jig for LCD-productionExpiredFeb 08, 90Apr 07, 92[B05D]
5094642 Method of manufacturing a control subassembly for flat display devicesExpiredDec 28, 90Mar 10, 92[H01J]
5071228 Black-white liquid crystal display having an insulation layer for blocking the diffusion of sodium ions from the glass of the cell plate to the polyphenylene of the orientation layerExpiredDec 19, 89Dec 10, 91[G02F]
5069733 Method of manufacturing the luminescent screen of a display deviceExpiredJun 29, 89Dec 03, 91[B44F, B32B]
5029623 Process for filling a liquid crystal cellExpiredApr 06, 90Jul 09, 91[G09F, G02F, B65B]
5030955 Remote control transmitterExpiredJul 10, 90Jul 09, 91[G08C, H01H]
5027097 Saddle-coil arrangement for a cathode ray tube and a coil carrier for such an arrangementExpiredJun 22, 90Jun 25, 91[H01F]
4996429 Pocket measuring instrument for measuring ionizing radiationExpiredOct 31, 89Feb 26, 91[G01T]
4977404 Remote control transmitter for emitting control commandsExpiredNov 28, 89Dec 11, 90[G08C, H01H]

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