Assignee
RICOH CORP
US·86 granted patents·1 pending application·7,976 citations·filing 1987–2006
Top patents by PatentIndex Score
87 records- 0198US5671282AMethod and apparatus for document verification and trackingRICOH CORP·Filed 1995·Granted Sep 23, 1997·544 cites·30 claims
- 0297US6081261AManual entry interactive paper and electronic document handling and processing systemRICOH CORP·Filed 1995·Granted Jun 27, 2000·517 cites·21 claims
- 0397US5583500AMethod and apparatus for parallel encoding and decoding of dataRICOH CORP·Filed 1993·Granted Dec 10, 1996·265 cites·70 claims
- 0497US5335290ASegmentation of text, picture and lines of a document imageRICOH CORP·Filed 1992·Granted Aug 2, 1994·213 cites·10 claims
- 0596US6928493B2System using internet electronic mail for communicating status of a monitored device to a monitoring deviceRICOH CORP·Filed 2002·Granted Aug 9, 2005·77 cites·20 claims
- 0696US5867602AReversible wavelet transform and embedded codestream manipulationRICOH CORP·Filed 1995·Granted Feb 2, 1999·284 cites·72 claims
- 0796US5432870AMethod and apparatus for compressing and decompressing images of documentsRICOH CORP·Filed 1993·Granted Jul 11, 1995·204 cites·33 claims
- 0896US5381145AMethod and apparatus for parallel decoding and encoding of dataRICOH CORP·Filed 1993·Granted Jan 10, 1995·386 cites·84 claims
- 0996US5363099AMethod and apparatus for entropy codingRICOH CORP·Filed 1993·Granted Nov 8, 1994·116 cites·25 claims
- 1096US5272478AMethod and apparatus for entropy codingRICOH CORP·Filed 1992·Granted Dec 21, 1993·134 cites·19 claims
- 1195US6990247B2Multiple coder techniqueRICOH CORP·Filed 2003·Granted Jan 24, 2006·64 cites·12 claims
- 1295US6058469ASystem and method for dynamically reconfigurable computing using a processing unit having changeable internal hardware organizationRICOH CORP·Filed 1998·Granted May 2, 2000·185 cites·8 claims
- 1395US5966465ACompression/decompression using reversible embedded waveletsRICOH CORP·Filed 1996·Granted Oct 12, 1999·226 cites·43 claims
- 1495US5881176ACompression and decompression with wavelet style and binary style including quantization by device-dependent parserRICOH CORP·Filed 1996·Granted Mar 9, 1999·174 cites·16 claims
- 1595US5337362AMethod and apparatus for placing data onto plain paperRICOH CORP·Filed 1993·Granted Aug 9, 1994·211 cites·37 claims
- 1694US7120707B2System using Internet electronic mail for communicating status of a monitored device to a monitoring deviceRICOH CORP·Filed 2003·Granted Oct 10, 2006·49 cites·27 claims
- 1794US5471206AMethod and apparatus for parallel decoding and encoding of dataRICOH CORP·Filed 1994·Granted Nov 28, 1995·143 cites·10 claims
- 1893US5873077AMethod and apparatus for searching for and retrieving documents using a facsimile machineRICOH CORP·Filed 1996·Granted Feb 16, 1999·310 cites·59 claims
- 1993US5475388AMethod and apparatus for using finite state machines to perform channel modulation and error correction and entropy codingRICOH CORP·Filed 1993·Granted Dec 12, 1995·129 cites·57 claims
- 2093US5465304ASegmentation of text, picture and lines of a document imageRICOH CORP·Filed 1994·Granted Nov 7, 1995·107 cites·24 claims
- 2192US6874092B1Method and apparatus for erasing data after tamperingRICOH CORP·Filed 2001·Granted Mar 29, 2005·92 cites·22 claims
- 2292US6304948B1Method and apparatus for erasing data after expirationRICOH CORP·Filed 1998·Granted Oct 16, 2001·111 cites·35 claims
- 2392US5933642ACompiling system and method for reconfigurable computingRICOH CORP·Filed 1997·Granted Aug 3, 1999·258 cites·32 claims
- 2492US5680481AFacial feature extraction method and apparatus for a neural network acoustic and visual speech recognition systemRICOH CORP·Filed 1995·Granted Oct 21, 1997·286 cites·13 claims
- 2592US5621858ANeural network acoustic and visual speech recognition system training method and apparatusRICOH CORP·Filed 1993·Granted Apr 15, 1997·101 cites·10 claims
- 2692US5319724AApparatus and method for compressing still imagesRICOH CORP·Filed 1991·Granted Jun 7, 1994·130 cites·7 claims
- 2791US6182206B1Dynamically reconfigurable computing using a processing unit having changeable internal hardware organizationRICOH CORP·Filed 1998·Granted Jan 30, 2001·124 cites·26 claims
- 2891US5771306AMethod and apparatus for extracting speech related facial features for use in speech recognition systemsRICOH CORP·Filed 1993·Granted Jun 23, 1998·85 cites·10 claims
- 2990US5586215ANeural network acoustic and visual speech recognition systemRICOH CORP·Filed 1992·Granted Dec 17, 1996·79 cites·16 claims
- 3090US5379355AData encoding using one or more adaptive decision treesRICOH CORP·Filed 1992·Granted Jan 3, 1995·115 cites·29 claims
- 3189US6889263B2System uses internet electronic mail for requesting status of a monitored device from a monitoring deviceRICOH CORP·Filed 1996·Granted May 3, 2005·103 cites·55 claims
- 3288US7401125B1System, computer program product and method for managing documentsRICOH CORP·Filed 2000·Granted Jul 15, 2008·43 cites·57 claims
- 3388US7068849B2Method and apparatus for compression using reversible wavelet transforms and an embedded codestreamRICOH CORP·Filed 2002·Granted Jun 27, 2006·24 cites·18 claims
- 3488US6970952B2System uses internet electronic mail for communicating status of a monitored device to a monitoring deviceRICOH CORP·Filed 1996·Granted Nov 29, 2005·95 cites·54 claims
- 3588US5452374ASkew detection and correction of a document image representationRICOH CORP·Filed 1992·Granted Sep 19, 1995·128 cites·6 claims
- 3687USRE39526EWireless image transfer from a digital still video camera to a networked computerRICOH CORP·Filed 2000·Granted Mar 20, 2007·28 cites·72 claims
- 3787US7194433B1System, computer program product and method for managing documentsRICOH CORP·Filed 2002·Granted Mar 20, 2007·32 cites·33 claims
- 3887US7142690B2System, computer program product and method for managing documentsRICOH CORP·Filed 2001·Granted Nov 28, 2006·36 cites·75 claims
- 3987US5539842AMethod and apparatus for compressing and decompressing images of documentsRICOH CORP·Filed 1994·Granted Jul 23, 1996·69 cites·8 claims
- 4086US5847708AMethod and apparatus for sorting informationRICOH CORP·Filed 1996·Granted Dec 8, 1998·122 cites·44 claims
- 4185US6957235B2Automatic document archiving for a computer systemRICOH CORP·Filed 2001·Granted Oct 18, 2005·22 cites·37 claims
- 4285US5867597AHigh-speed retrieval by exampleRICOH CORP·Filed 1995·Granted Feb 2, 1999·182 cites·17 claims
- 4383US7099050B2Multi-function machine for combining and routing image data and method of operating sameRICOH CORP·Filed 2004·Granted Aug 29, 2006·13 cites·17 claims
- 4482US7076104B1Compression and decompression with wavelet style and binary style including quantization by device-dependent parserRICOH CORP·Filed 1999·Granted Jul 11, 2006·55 cites·17 claims
- 4582US5767987AMethod and apparatus for combining multiple image scans for enhanced resolutionRICOH CORP·Filed 1994·Granted Jun 16, 1998·83 cites·39 claims
- 4682US5535290AMethod and apparatus for limiting the number of a compressed output type in a compression/decompression systemRICOH CORP·Filed 1995·Granted Jul 9, 1996·77 cites·27 claims
- 4781US7227655B1Utilizing otherwise unused space on cover or partition sheetsRICOH CORP·Filed 2000·Granted Jun 5, 2007·22 cites·16 claims
- 4881US5331554AMethod and apparatus for semantic pattern matching for text retrievalRICOH CORP·Filed 1992·Granted Jul 19, 1994·116 cites·26 claims
- 4980US7149784B2System, computer program product and method for exchanging documents with an application service provider at a predetermined timeRICOH CORP·Filed 2001·Granted Dec 12, 2006·25 cites·51 claims
- 5080US7117247B2System, computer program product and method for storing information in an application service provider via e-mailsRICOH CORP·Filed 2001·Granted Oct 3, 2006·23 cites·37 claims
Showing the top 50 of 87 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when RICOH CORP files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →