Fujitsu Isotec Limited

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B41J TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS 2100
 
  
 
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 290
 
  
 
G03G ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY 279

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6152628 Sheet supply apparatus with feed protrusions for skew correctionDec 31, 98Nov 28, 00[B41J]
6102595 Sheet supply apparatus having inclined feeding correcting function and recording apparatusJul 12, 99Aug 15, 00[B41J]
5530528 Image forming apparatus having contact type, one-component developing unitAug 10, 93Jun 25, 96[G03G]
5339132 Mount structure of a light emitting element array in electronic photographic apparatusMar 04, 93Aug 16, 94[G03G]
5259875 Ink ribbon for printer and ink thereforJun 05, 92Nov 09, 93[C09D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6899752 Latent image printing ink composition, prints containing latent images recorded with the ink composition, and latent image data-based deciphering method and latent image data deciphering deviceExpiredMay 16, 03May 31, 05[C09D]
6135384 Device for detecting near end state of roll of paperExpiredNov 02, 99Oct 24, 00[B65H]
6071352 Erasing method and erasing apparatus for performing that erasing methodExpiredApr 15, 94Jun 06, 00[B08B]
6030440 Water-based pigment-type ink and ink jet printerExpiredFeb 27, 98Feb 29, 00[C09D]
6024322 Device for detecting near end state of roll of paperExpiredAug 31, 94Feb 15, 00[B65H]
6007189 Piezoelectric type ink-jet printing head having a pressure chamber plate which is less flexible than piezoelectric elementsExpiredAug 21, 95Dec 28, 99[B41J]
5915859 Pivotable ink ribbon cassette and a printerExpiredJun 18, 97Jun 29, 99[B41J]
5906481 Piezoelectric fluid pumpExpiredMay 22, 96May 25, 99[F04B]
5822504 Font packing device and font unpacking deviceExpiredSep 12, 96Oct 13, 98[G06F]
5531431 Paper feeder for portable printerExpiredApr 05, 95Jul 02, 96[B65H]
D369180 PrinterExpiredDec 19, 94Apr 23, 96[]
5472286 Ink ribbon cassetteExpiredJul 18, 94Dec 05, 95[B41J]
5423529 Paper feeder for portable printerExpiredOct 14, 94Jun 13, 95[B65H]
5409275 Magnetic retaining device for electronic apparatusExpiredMar 01, 94Apr 25, 95[E05C]
5336553 Ink ribbon for printer and ink thereforExpiredMar 08, 93Aug 09, 94[D03D]
5326937 Grounding structure of a printed wiring boardExpiredJan 22, 93Jul 05, 94[H05K]
5312144 Magnetic retaining device for electronic apparatusExpiredJan 29, 92May 17, 94[E05C]
5248208 Method for setting ink ribbon into cassette body and ink ribbon cassette to which such method is applicableExpiredFeb 12, 93Sep 28, 93[B41J]
5236265 Portable printer with variable housing configurationsExpiredFeb 28, 92Aug 17, 93[B41J]
5211490 Ink ribbon cassette with re-inking and drive gearExpiredNov 27, 91May 18, 93[B41J]

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