Okeya; Katsuyuki

Patent Applications and Registrations

Patent applications and USPTO patent grants for Okeya; Katsuyuki.The latest application filed is for "modular multiplication processing apparatus".

Company Profile

0.11.14

Okeya; Katsuyuki - Sagamihara N/A JP
Okeya; Katsuyuki - Yokohama JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Modular multiplication processing apparatus Grant 8,504,602 - Yoshino , et al. August 6, 2	2013-08-06
Data processing system and data processing method Grant 8,374,345 - Vuillaume , et al. February 12, 2	2013-02-12
System and method for digital signatures and authentication Grant 8,291,229 - Vuillaume , et al. October 16, 2	2012-10-16
Modular Multiplication Processing Apparatus App 20110161390 - Yoshino; Masayuki ; et al.	2011-06-30
Modular multiplication processing apparatus Grant 7,904,498 - Yoshino , et al. March 8, 2	2011-03-08
Privacy-preserving Scalar Product Calculation System, Privacy-preserving Scalar Product Calculation Method And Cryptographic Key Sharing System App 20090279694 - TAKAHASHI; Kenta ; et al.	2009-11-12
Data Processing System And Data Processing Method App 20090245507 - VUILLAUME; Camille ; et al.	2009-10-01
System and Method for Digital Signatures and Authentication App 20090187766 - VUILLAUME; Camille ; et al.	2009-07-23
Computation method for modular exponentiation operation in decryption or signature generation Grant 7,512,231 - Okeya , et al. March 31, 2	2009-03-31
Method and system for contents control Grant 7,478,432 - Echizen , et al. January 13, 2	2009-01-13
Method And Apparatus For Securely Processing Secret Data App 20080240443 - VUILLAUME; Camille ; et al.	2008-10-02
Signature System and Signature Method App 20080095360 - Vuillaume; Camille ; et al.	2008-04-24
Elliptic scalar multiplication system Grant 7,308,096 - Okeya , et al. December 11, 2	2007-12-11
Message Authentication Code Generating Device, Message Authentication Code Verification Device, And Message Authentication System App 20070245147 - Okeya; Katsuyuki	2007-10-18
Modular multiplication processing apparatus App 20070185950 - Yoshino; Masayuki ; et al.	2007-08-09
Method of calculating multiplication by scalars on an elliptic curve and apparatus using same and recording medium Grant 7,046,801 - Okeya May 16, 2	2006-05-16
Computation method for modular exponentiation operation in decryption or signature generation App 20050147241 - Okeya, Katsuyuki ; et al.	2005-07-07
Elliptic curve generating method and device, elliptic encryption system and recording medium Grant 6,816,594 - Okeya November 9, 2	2004-11-09
Elliptic curve scalar multiplication method and device, and storage medium App 20030156714 - Okeya, Katsuyuki	2003-08-21
Elliptic scalar multiplication system App 20030059042 - Okeya, Katsuyuki ; et al.	2003-03-27
Elliptic curve signature verification method and apparatus and a storage medium for implementing the same App 20030059043 - Okeya, Katsuyuki	2003-03-27
Method and system for contents control App 20020188840 - Echizen, Isao ; et al.	2002-12-12
Method of calculating multiplication by scalars on an elliptic curve and apparatus using same and recording medium App 20010048741 - Okeya, Katsuyuki	2001-12-06

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