Canon 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 13185
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 5442
 
  
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 4238
 
  
 
G21K TECHNIQUES FOR HANDLING PARTICLES OR ELECTROMAGNETIC RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA- OR X-RAY MICROSCOPES 244
 
  
 
H01J ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 2126
 
  
 
B65H HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES178
 
  
 
G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR 196
 
  
 
G03F PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR 1103
 
  
 
G06T IMAGE DATA PROCESSING OR GENERATION, IN GENERAL 1134
 
  
 
G07D SORTING, TESTING, CHANGING, DELIVERING, OR OTHERWISE HANDLING COINS; TESTING OR CHANGING PAPER CURRENCY; TESTING SECURITIES, BONDS, OR SIMILAR VALUABLE PAPERS 136

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8008622 Electron beam apparatus and method of generating an electron beam irradiation patternDec 03, 09Aug 30, 11[H01J]
7635851 Electron beam apparatus and method of generating an electron beam irradiation patternSep 13, 06Dec 22, 09[H01J]
7608844 Charged particle beam drawing apparatusMay 25, 05Oct 27, 09[G21K]
7030925 Camera system having converting means, recording means, reproduction means, plate-shaped display and protection meansJun 07, 95Apr 18, 06[H04N]
RE38942 Apparatus for generating an image from a digital video signalJan 24, 91Jan 24, 06[H04N]
6768357 PLL circuit which compensates for stoppage of PLL operationsJul 23, 01Jul 27, 04[H03L]
6744054 Evacuation use sample chamber and circuit pattern forming apparatus using the sameDec 05, 01Jun 01, 04[G21K]
6064761 Near black under color removalJul 15, 96May 16, 00[G06K]
5825943 Selective document retrieval method and systemSep 29, 95Oct 20, 98[G06K]
5781659 OCR classification based on transition ground dataFeb 04, 97Jul 14, 98[G06K]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7599007 Noise detection method, noise reduction method, noise detection device, and noise reduction deviceExpiredSep 14, 05Oct 06, 09[H04N]
2006/0011,869 Measurement method of electron beam current, electron beam lithography method and systemAbandonedJul 14, 05Jan 19, 06[G21G, G21K]
6770385 Fluorescent bis-coumarins for organic light-emitting devicesExpiredJan 09, 02Aug 03, 04[C09K, H05B, C07D]
6647102 Data communication apparatus capable of executing demonstration operationExpiredAug 23, 01Nov 11, 03[H04M]
6384836 Color gamut clippingExpiredAug 27, 97May 07, 02[G09G]
5844532 Color display systemExpiredJan 05, 96Dec 01, 98[G09G]
5757516 Noise quenching method and apparatus for a colour display systemExpiredJan 04, 94May 26, 98[H04N]
5719959 Similarity determination among patterns using affine-invariant featuresExpiredMay 09, 95Feb 17, 98[G06K]
5652782 Digital telephone overcoming international incompatibilitiesExpiredMay 18, 95Jul 29, 97[H04M, H04J]
5625707 Training a neural network using centroid dithering by randomly displacing a templateExpiredMay 22, 95Apr 29, 97[G06T]
5576731 Display line dispatcher apparatusExpiredJun 12, 95Nov 19, 96[G09G]
5561476 Motion detection method and apparatusExpiredSep 12, 95Oct 01, 96[H04N, G09G]
5530775 Method of multi-font template enhancement by pixel weightingExpiredAug 19, 94Jun 25, 96[G06K]
5526021 Dithering optimization techniquesExpiredJan 04, 94Jun 11, 96[G09G]
5487118 Sequential extraction of strokes from a stroke based symbol apparatus and methodExpiredApr 08, 94Jan 23, 96[G06K]
5481319 Motion detection method and apparatusExpiredApr 11, 95Jan 02, 96[H04N]
5475768 High accuracy optical character recognition using neural networks with centroid ditheringExpiredApr 29, 93Dec 12, 95[G06K]
5379349 Method of OCR template enhancement by pixel weightingExpiredSep 01, 92Jan 03, 95[G06K]
5132652 Highpower microwave transmissive window assemblyExpiredNov 20, 89Jul 21, 92[H01P]
5046116 Symbol analyzing system and method with data exclusion and confidence factorsExpiredDec 14, 90Sep 03, 91[G06K]

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