Inventor
NUMAO MASAYUKI
JP34 patents
⚠️ This page may combine multiple inventors who share the name “NUMAO MASAYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
27 patentsUS6005936ADec 21, 1999
System for embedding authentication information into an image and an image alteration detecting system
IBM238 citations99
US6647388B2Nov 11, 2003
Access control system, access control method, storage medium and program transmission apparatus
IBM323 citations98
US6512835B1Jan 28, 2003
Data hiding and extraction methods
IBM80 citations98
US5497452AMar 5, 1996
Method and apparatus for generating a geometric model
IBM123 citations98
US6381695B2Apr 30, 2002
Encryption system with time-dependent decryption
IBM60 citations96
US6377688B1Apr 23, 2002
Cryptographic communication method and system
IBM62 citations96
US6055321AApr 25, 2000
System and method for hiding and extracting message data in multimedia data
IBM66 citations96
US7346171B2Mar 18, 2008
Network system, terminal, and method for encryption and decryption
IBM24 citations93
US7657740B2Feb 2, 2010
Verifying the ownership of an owner's authority in terms of product and service
IBM28 citations92
US6701435B1Mar 2, 2004
Cryptographic key generation system
IBM44 citations92
US5745117AApr 28, 1998
System and method of creating a three-dimensional solid model from a plurality of two-dimensional drawings
IBM22 citations86
US6078330AJun 20, 2000
Solid model construction method and apparatus
IBM8 citations74
US5668939ASep 16, 1997
Method and apparatus for rendering a solid three dimensional model from two dimensional input information including closed region recognizing and three dimensional rendering
IBM14 citations74
US7769706B2Aug 3, 2010
Method and system for obtaining a combination of faulty parts from a dispersed parts tree
IBM7 citations73
US8386780B2Feb 26, 2013
Cryptographic communication system, terminal device, server, and decryption method
IBM3 citations63
US7913089B2Mar 22, 2011
Identification information creating apparatus, identification information resolving apparatus, information system utilizing the apparatuses, controlling method and program thereof
IBM6 citations63
US7539315B2May 26, 2009
Encrypted communication system, key delivery server thereof, terminal device and key sharing method
IBM5 citations63
US5684725ANov 4, 1997
Solid model synthesis system and solid model synthesis method
IBM5 citations63
US7917513B2Mar 29, 2011
Duplicating database contents
IBM5 citations62
US7913093B2Mar 22, 2011
Method and system for providing access to information on an article to which a tag is coupled
IBM5 citations62
US7567948B2Jul 28, 2009
Method and system for obtaining a combination of faulty parts from a dispersed parts tree
IBM4 citations62
US7478244B2Jan 13, 2009
Access control method
IBM2 citations62
US7752161B2Jul 6, 2010
Access management system, access administration apparatus, access administration program, access administration method, and recording medium
IBM6 citations59
US10803075B2Oct 13, 2020
System and method for searching a database or data sharing system for the presence of data
IBM0 citations52
US7979712B2Jul 12, 2011
Network system, server and information terminal for list matching
IBM1 citations52
US7331519B2Feb 19, 2008
Traceability signature system, signature method and program product
IBM1 citations51
US7836312B2Nov 16, 2010
Information acquisition enabled/disabled inspection system
IBM0 citations39
NUMAO MASAYUKI
3 patentsUS8117456B2Feb 14, 2012
Network system, server and information terminal for list matching
NUMAO MASAYUKI7 citations82
US8538937B2Sep 17, 2013
Method for searching a database or data sharing system for the presence of data
NUMAO MASAYUKI2 citations61
US8618905B2Dec 31, 2013
Verifying the ownership of an owner's authority in terms of product and service
NUMAO MASAYUKI1 citations50