YOZAN INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 12186
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 1446
 
  
 
G06G ANALOGUE COMPUTERS 152
 
  
 
G06J HYBRID COMPUTING ARRANGEMENTS 14
 
  
 
G11C STATIC STORES 1150
 
  
 
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
5740096 Filter circuit for communicationSep 06, 96Apr 14, 98[G06G]
5621823 Image processing method for thinning lines using index valuesJan 08, 93Apr 15, 97[G06K]
5610993 Method of co-centering two images using histograms of density changeDec 10, 92Mar 11, 97[G06K]
5563812 Filter device including analog and digital circuitryJan 23, 95Oct 08, 96[G06J]
5555314 Fingerprint data processing methodApr 25, 94Sep 10, 96[G06K]
5553170 High speed image processing system having a preparation portion and a converting portion generating a processed image based on the preparation portionNov 14, 94Sep 03, 96[G06K]
5546479 Method for detecting inclination of an image of charactersSep 27, 95Aug 13, 96[G06K]
5438634 Dither processing methodMay 23, 94Aug 01, 95[G06K]
5430479 Moving vector extractorOct 16, 91Jul 04, 95[H04N]
5414666 Memory control deviceJul 30, 92May 09, 95[G11C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2004/0203,734 Wireless communication systemAbandonedJul 29, 02Oct 14, 04[H04M, H04Q, H04B]
2004/0143,813 System development supporting apparatus, system development supporting method, and computer-readable recorded mediumAbandonedJan 23, 02Jul 22, 04[G06F]
2004/0052,359 Communication systemAbandonedJul 21, 03Mar 18, 04[H04M]
2004/0006,517 Rental machine and storage mediumAbandonedAug 20, 02Jan 08, 04[G06F]
2003/0179,722 Master communication apparatus used in radio lan system, and control method and control program of master communication apparatusAbandonedNov 12, 02Sep 25, 03[H04J]
2003/0139,137 Radio lan system and radio lan system controlling method and control programAbandonedAug 22, 02Jul 24, 03[H04B]
2003/0133,493 Path search method and path search device, and mobile terminalAbandonedDec 31, 02Jul 17, 03[H04B, H04K]
2003/0119,560 Radio communication control station device and radio communication deviceAbandonedAug 16, 02Jun 26, 03[H04B]
2003/0089,767 Commodity transacting device, mobile communication device, administration device, and commodity transacting systemAbandonedJun 28, 02May 15, 03[G06F]
2003/0078,056 Communication system and line selecting methodAbandonedOct 15, 02Apr 24, 03[H04Q]
2003/0078,844 Charging systemAbandonedMar 22, 02Apr 24, 03[G06F]
6539009 Signal reception apparatus for DS-CDMA cellular systemExpiredNov 18, 98Mar 25, 03[H04B, H04J]
2003/0040,306 Wireless communication systemAbandonedJul 26, 02Feb 27, 03[H04M, H04Q, H04B]
2003/0033,610 Broadcast program recorder, computer program, and recorded mediumAbandonedSep 03, 02Feb 13, 03[H04N]
2003/0003,973 Radio communication apparatus, radio communication system and communication apparatusAbandonedJun 21, 02Jan 02, 03[H04M, G08C, H04B]
RE37953 Filter circuit for communicationExpiredSep 24, 99Dec 31, 02[G06G]
2002/0181,669 Telephone device and translation telephone deviceAbandonedJun 04, 02Dec 05, 02[H04M]
2002/0159,481 Telegraphic message transmitter and telegraphic message receiverAbandonedMar 22, 02Oct 31, 02[H04J]
2002/0114,197 Address converter, interleaver and de-interleaverAbandonedJan 22, 02Aug 22, 02[G11C]
2002/0066,279 Refrigerator with a function to confirm items stored thereinAbandonedNov 14, 01Jun 06, 02[F25B]

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