| Patent | Date |
|---|
Apparatus and method for controlling profile data delivery
Grant 10,686,768 - Takagi , et al. | 2020-06-16 |
Communication system, communication method, and communication device
Grant 10,270,768 - Yajima , et al. | 2019-04-23 |
Apparatus And Method For Controlling Profile Data Delivery
App 20170366525 - TAKAGI; Junji ; et al. | 2017-12-21 |
Electronic circuit, latch circuit, and external action detecting circuit
Grant 9,793,895 - Yamamoto , et al. October 17, 2 | 2017-10-17 |
Communication System, Communication Method, And Communication Device
App 20170208065 - Yajima; Jun ; et al. | 2017-07-20 |
Electronic Circuit, Latch Circuit, And External Action Detecting Circuit
App 20170187381 - YAMAMOTO; Dai ; et al. | 2017-06-29 |
Information Collection Apparatus And Method
App 20160246994 - OGURA; Takao ; et al. | 2016-08-25 |
Multiple-word multiplication-accumulation circuit and montgomery modular multiplication-accumulation circuit
Grant 8,078,661 - Mukaida , et al. December 13, 2 | 2011-12-13 |
Device and method for calculating conversion parameter of montgomery modular multiplication and program therefor
Grant 7,792,893 - Itoh , et al. September 7, 2 | 2010-09-07 |
Elliptic curve cryptosystem apparatus, elliptic curve cryptosystem method, elliptic curve cryptosystem program and computer readable recording medium storing the elliptic curve cryptosystem program
Grant 7,639,808 - Izu , et al. December 29, 2 | 2009-12-29 |
Tamper-proof elliptic encryption with private key
Grant 7,536,011 - Takenaka , et al. May 19, 2 | 2009-05-19 |
Encryption/decryption system for calculating effective lower bits of a parameter for Montgomery modular multiplication
Grant 7,403,965 - Mukaida , et al. July 22, 2 | 2008-07-22 |
Encryption secured against DPA
Grant 7,386,130 - Ito , et al. June 10, 2 | 2008-06-10 |
Tamper-proof elliptic encryption with private key
App 20070177721 - Itoh; Kouichi ; et al. | 2007-08-02 |
Encryption circuit
Grant 7,158,638 - Okada , et al. January 2, 2 | 2007-01-02 |
Device and method for calculating conversion parameter of montgomery modular multiplication and program therefor
App 20060235921 - Itoh; Kouichi ; et al. | 2006-10-19 |
Encryption operating apparatus and method having side-channel attack resistance
Grant 7,065,788 - Yajima , et al. June 20, 2 | 2006-06-20 |
Elliptic curve cryptosystem apparatus, elliptic curve cryptosystem method, elliptic curve cryptosystem program and computer readable recording medium storing the elliptic curve cryptosystem program
App 20060093137 - Izu; Tetsuya ; et al. | 2006-05-04 |
Extended key preparing apparatus, extended key preparing method, recording medium and computer program
Grant 6,956,951 - Shimoyama , et al. October 18, 2 | 2005-10-18 |
Arithmetic device
App 20050165875 - Mukaida, Kenji ; et al. | 2005-07-28 |
Multiple-word multiplication-accumulation circuit and Montgomery modular multiplication-accumulation circuit
App 20050165876 - Mukaida, Kenji ; et al. | 2005-07-28 |
Tamper-proof elliptic encryption with private key
App 20050152541 - Takenaka, Masahiko ; et al. | 2005-07-14 |
Data protection system, data preparation device, and data working device
Grant 6,829,592 - Hasebe , et al. December 7, 2 | 2004-12-07 |
Encryption operating apparatus and method having side-channel attack resistance
App 20030133567 - Yajima, Jun ; et al. | 2003-07-17 |
Encryption circuit
App 20030108195 - Okada, Souichi ; et al. | 2003-06-12 |
Encryption secured against DPA
App 20030048903 - Ito, Koichi ; et al. | 2003-03-13 |
Computing apparatus using an SPN structure in an F function and a computation method thereof
App 20020021801 - Shimoyama, Takeshi ; et al. | 2002-02-21 |
Extended key preparing apparatus, extended key preparing method, recording medium and computer program
App 20020006196 - Shimoyama, Takeshi ; et al. | 2002-01-17 |
Key recovery system and key recovery method
Grant 6,266,421 - Domyo , et al. July 24, 2 | 2001-07-24 |
Key recovery system
Grant 6,185,308 - Ando , et al. February 6, 2 | 2001-02-06 |
Encrypted data recovery method using split storage key and system thereof
Grant 6,118,874 - Okamoto , et al. September 12, 2 | 2000-09-12 |
System for management of software employing memory for processing unit with regulatory information, for limiting amount of use and number of backup copies of software
Grant 6,067,640 - Akiyama , et al. May 23, 2 | 2000-05-23 |
Licensee notification system
Grant 5,935,243 - Hasebe , et al. August 10, 1 | 1999-08-10 |
File protection system, software utilization system using the file protection system and storage medium used in the software utilization system
Grant 5,917,908 - Takenaka , et al. June 29, 1 | 1999-06-29 |
Method and device for utilizing data content
Grant 5,832,083 - Iwayama , et al. November 3, 1 | 1998-11-03 |
System for management of software employing memory for processing unit with regulatory information, for limiting amount of use and number of backup copies of software
Grant 5,822,771 - Akiyama , et al. October 13, 1 | 1998-10-13 |
System for refunding payment for software
Grant 5,761,308 - Torii , et al. June 2, 1 | 1998-06-02 |
Software charging system and software data utilization permitting device
Grant 5,761,651 - Hasebe , et al. June 2, 1 | 1998-06-02 |
Transformation pattern generating device and encryption function device
Grant 5,623,548 - Akiyama , et al. April 22, 1 | 1997-04-22 |
Moving-picture encipherment method and system, and enciphered moving-picture decipherment method and system
Grant 5,621,794 - Matsuda , et al. April 15, 1 | 1997-04-15 |
Enciphered file sharing method
Grant 5,584,022 - Kikuchi , et al. December 10, 1 | 1996-12-10 |
Modular arithmetic operation system
Grant 5,499,299 - Takenaka , et al. March 12, 1 | 1996-03-12 |
Encryption communication system
Grant 5,325,433 - Torii , et al. June 28, 1 | 1994-06-28 |
Key distribution protocol for file transfer in the local area network
Grant 5,313,521 - Torii , et al. May 17, 1 | 1994-05-17 |
Voice band splitting scrambler
Grant 5,065,430 - Torii , et al. November 12, 1 | 1991-11-12 |
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