A.T COMMUNICATIONS CO., LTD.

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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 8190
 
  
 
G09G ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION 3148
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 2445
 
  
 
G09C CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY 210
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 2283
 
  
 
G06T IMAGE DATA PROCESSING OR GENERATION, IN GENERAL 1134

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9654291 Authentication server, authentication system, authentication method, and programJul 03, 13May 16, 17[H04L, G09C, G06F]
9547815 Apparatuses and methods generating a two-dimensional code with a logoNov 03, 15Jan 17, 17[G06T, G09G, G06K]
9436852 Two-dimensional code authenticating device, two-dimensional code generating device, two-dimensional code authenticating method, and programAug 17, 12Sep 06, 16[G06K]
9208421 Apparatuses and methods generating a two-dimensional code with a logoMar 18, 11Dec 08, 15[G09G, G06K]
8851392 Two-dimensional code display apparatus, two-dimensional code display method, and programNov 09, 09Oct 07, 14[H04L, G06K]
8379052 Two-dimensional code display system, two-dimensional code display method, and programJun 04, 10Feb 19, 13[G09G]
8144922 Two-dimensional code with a logoApr 18, 07Mar 27, 12[G06K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0139,554 TWO-DIMENSIONAL CODE DISPLAY SYSTEM, TWO-DIMENSIONAL CODE DISPLAY METHOD, AND PROGRAMAbandonedJan 28, 14May 22, 14[G09G]
8526670 Two-dimensional code with a logoExpiredNov 14, 11Sep 03, 13[G06K]
8498443 Watermark information embedding device, watermark information processing system, watermark information embedding method, and programExpiredJun 02, 10Jul 30, 13[G06K]
2010/0238,198 TWO-DIMENSIONAL CODE DISPLAY SYSTEM, TWO-DIMENSIONAL CODE DISPLAY METHOD, AND PROGRAMAbandonedJun 04, 10Sep 23, 10[G09G]

Top Inventors for This Owner

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