RICOH PRINTING SYSTEMS, LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G03G ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY 5537
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 9438
 
  
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 8190
 
  
 
B41J TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS 696
 
  
 
B65H HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES475
 
  
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 3239
 
  
 
G06T IMAGE DATA PROCESSING OR GENERATION, IN GENERAL 2133
 
  
 
A63B APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT 166
 
  
 
B41F PRINTING MACHINES OR PRESSES 143
 
  
 
C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 1115

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7369786 Sheet transporting apparatus and printing apparatusJul 10, 06May 06, 08[G03G]
7336917 Film loader for an image forming apparatusMay 30, 03Feb 26, 08[G03G]
7327974 Electrophotographic toner and image-forming systemSep 11, 03Feb 05, 08[G03G]
7324778 Fixing device including heating roller and pressure rollerJul 01, 05Jan 29, 08[G03G]
7308220 Belt unit of electrophotographic printing apparatusFeb 20, 04Dec 11, 07[G03G]
7298981 Fixing device and image forming apparatus with guide having adjustable biasing angleJul 07, 05Nov 20, 07[G03G]
7295794 Film loader for an image forming apparatusMay 10, 06Nov 13, 07[G03G]
7292805 Image forming apparatus having a sheet removal portionDec 22, 04Nov 06, 07[G03G]
7272355 Cleaning device for image forming apparatusAug 01, 05Sep 18, 07[G03G]
7245841 Electrophotographic apparatusAug 13, 04Jul 17, 07[G03G]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7654652 Ink jet headExpiredAug 31, 05Feb 02, 10[B41J]
7542642 Multi-beam generating device and optical recording device using the sameExpiredAug 09, 07Jun 02, 09[G02B]
7542652 Multi-beam light source, method for manufacturing the same, light scanning unit using the same, and image forming apparatus using the sameExpiredJan 05, 07Jun 02, 09[G02B]
7477813 Multi-beam light source, method for manufacturing the same, light scanning unit using the same, and image forming apparatus using the sameExpiredJan 16, 07Jan 13, 09[G02B]
7425975 Multi-beam image forming apparatusExpiredDec 05, 05Sep 16, 08[B41J]
7413294 Inkjet head with high density nozzle packingExpiredMar 01, 04Aug 19, 08[B41J]
7369284 Image signal processing method, image signal processing device, and image signal processing systemExpiredApr 12, 00May 06, 08[H04N]
7342700 Optical scanning apparatus and image forming apparatusExpiredJan 03, 06Mar 11, 08[G02B]
7343110 Color image forming device having a temperature detectorExpiredAug 03, 05Mar 11, 08[G03G]
7339603 Exposure device for an electrophotographic apparatusExpiredMay 03, 04Mar 04, 08[B41J]
7339713 Optical beam scanner, image forming device, and optical beam scanning methodExpiredAug 24, 06Mar 04, 08[G02B]
7336383 Printer system, and printing system using the printer system, for centralized printer managementExpiredMay 22, 03Feb 26, 08[G06F]
7301669 Color printing apparatusExpiredAug 28, 00Nov 27, 07[G06F]
7290873 Ink jet recording methodExpiredMar 17, 05Nov 06, 07[G01D]
7286274 Optical scanner and image forming apparatus using the sameExpiredJul 28, 06Oct 23, 07[G02B]
7246890 Detection device for detecting ejection condition of nozzlesExpiredMar 25, 04Jul 24, 07[B41J]
7232206 Ink-jet head, ink-jet printer using the same, and process for producing ink-jet headExpiredApr 29, 04Jun 19, 07[B41J]
7231158 Image forming apparatus having a fixing device with improved temperature detection featuresExpiredDec 14, 04Jun 12, 07[G03G]
7226150 Inkjet head and a method of manufacturing the sameExpiredJul 14, 04Jun 05, 07[B41J]
7222946 Ink jet head and droplet ejection device having same mounted thereonExpiredApr 15, 04May 29, 07[B41J]

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