RICOH TECHNOLOGIES COMPANY, LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G03G ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY 1170
 
  
 
B41J TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS 498
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 3202
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 2445
 
  
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 2196
 
  
 
C09D COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR 191
 
  
 
G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER 1137
 
  
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 1241

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6144836 Electrostatographic printing machineSep 09, 97Nov 07, 00[G03G]
6102512 Method of minimizing ink drop velocity variations in an on-demand multi-nozzle ink jet headMar 14, 97Aug 15, 00[B41J]
6049840 System for providing an interrogating host with information including start-up processing status of a peripheral device stored in storing meansJan 29, 98Apr 11, 00[G06F]
5971582 Method for controlling printing and printing controlling apparatus thereforAug 19, 97Oct 26, 99[G06F]
5940582 Data printing system and method, and a controller and printer thereforeJul 24, 91Aug 17, 99[G06K]
5848323 Apparatus for printing images on both sides of an image printing medium by one processFeb 01, 96Dec 08, 98[G03G]
5842098 Fixing apparatus and fixing method for electrophotographic apparatusOct 21, 97Nov 24, 98[G03G]
5797075 Image forming apparatus having improved toner carrier arrangementMar 11, 97Aug 18, 98[G03G]
5761568 Electro-photographic apparatus having transfer bias controlDec 27, 96Jun 02, 98[G03G]
5719832 Optical recording apparatus using optical fibers for guiding laser beamsNov 05, 96Feb 17, 98[G11B]

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Expired/Abandoned/Withdrawn Patents

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