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Browse by Category: Main > Information Technology
Class Information
Number: 380/55
Name: Cryptography > Having production of printed copy (e.g., cryptographic printer or typewriter)
Description: Subject matter which generates a permanent visible record of either the encrypted or decrypted characters.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
7873183 Embedding and detecting watermarks based on embedded positions in document layout Jan. 18, 2011
7864955 Print system, control method therefor, information processing apparatus, control method therefor, program for implementing the control method, and storage medium storing the control program Jan. 4, 2011
7853017 Method and apparatus for encrypted print processing Dec. 14, 2010
7849316 Methods and apparatus for secure document printing Dec. 7, 2010
7844073 Watermark-based goods authentication Nov. 30, 2010
7831830 Methods and apparatus for secure document printing Nov. 9, 2010
7818263 Technique for effectively generating multi-dimensional symbols representing postal information Oct. 19, 2010
7818812 Article and system for decentralized creation, distribution, verification and transfer of valuable documents Oct. 19, 2010
7809137 Job allocation control apparatus and job allocation control method Oct. 5, 2010
7809952 System for registering sensing device with relay device Oct. 5, 2010
7796753 Digital anti-counterfeiting software method and apparatus Sep. 14, 2010
7792291 XOR encoded document for secure message exchange Sep. 7, 2010
7792760 Printing device, information processing apparatus, printing system, signature verifying method, signature adding method, and program Sep. 7, 2010
7778416 Print data communication with data encryption and decryption Aug. 17, 2010
7757090 System for verifying of secure document Jul. 13, 2010
7740281 Method and system for producing certified documents and the like Jun. 22, 2010
7739509 Authentication of an object using a signature part Jun. 15, 2010
7724918 Data obfuscation of text data using entity detection and replacement May. 25, 2010
7721099 Securing access to documents within multi-function devices May. 18, 2010
7711140 Secure recorded documents May. 4, 2010
7684064 Print job authentication Mar. 23, 2010
7676038 Secure printing method to thwart counterfeiting Mar. 9, 2010
7664956 Method and system for real-time control of document printing Feb. 16, 2010
7657031 Method and device for printing sensitive data Feb. 2, 2010
7634801 Multifunction machine and personal authentication method of multifunction machine Dec. 15, 2009
7620177 Secure printing Nov. 17, 2009
7617510 Media network using set-top boxes as nodes Nov. 10, 2009
7617539 Image processing device, document data transmission method, program, and storage medium for image processing device Nov. 10, 2009
7565542 Remote authentication of an object using a signature part Jul. 21, 2009
7558962 Method of authenticating a print medium online Jul. 7, 2009
7545541 Systems and methods for embedding metadata in a color measurement target Jun. 9, 2009
7526647 Authorization protocol for network publishing Apr. 28, 2009
7516494 Method, apparatus, and system for outputting information and forming image via network, and computer product Apr. 7, 2009
7500268 Method of authenticating a print medium before printing Mar. 3, 2009
7496209 Techniques and systems for embedding and detecting watermarks in digital data Feb. 24, 2009
7490240 Electronically signing a document Feb. 10, 2009
7484101 Coded data associated with an object and encoding a distributed signature Jan. 27, 2009
7471401 Information processing apparatus, printing processing method, and program therefor Dec. 30, 2008
7472278 Remote authentication of an object using a signature encoded in a number of data portions Dec. 30, 2008
7467299 Authentication device Dec. 16, 2008
7467300 Coded data including a distributed data stream Dec. 16, 2008
7467301 Authentication processor using a signature part Dec. 16, 2008
7467416 Publishing network Dec. 16, 2008
7457961 Authentication of an object using a signature encoded in a number of data portions Nov. 25, 2008
7447908 Method of authenticating a print medium offline Nov. 4, 2008
7440143 Tampering judgement system, encrypting system for judgement of tampering and tampering judgement method Oct. 21, 2008
7436956 Document encryption Oct. 14, 2008
7389423 System and method for registering a sensing device with a relay device Jun. 17, 2008
7386149 Method and apparatus for embedding digital-watermark using robustness parameter Jun. 10, 2008
7369659 Item handling system May. 6, 2008

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