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Method of producing segmented chips Grant 8,021,964 - Akiyama , et al. September 20, 2 | 2011-09-20 |
Method Of Manufacturing Wafer Laminated Body, Device Of Manufacturing Wafer Laminated Body, Wafer Laminated Body, Method Of Peeling Support Body, And Method Of Manufacturing Wafer App 20110151176 - Akiyama; Ryota ;   et al. | 2011-06-23 |
Encryption process, encryption device, and computer-readable medium storing encryption program Grant 7,961,871 - Okubo , et al. June 14, 2 | 2011-06-14 |
Method Of Producing Segmented Chips App 20100233867 - Akiyama; Ryota ;   et al. | 2010-09-16 |
Time management apparatus and time management method Grant 7,555,651 - Akiyama , et al. June 30, 2 | 2009-06-30 |
Authentication system, authentication method, signing apparatus, signing method, certifying apparatus, certifying method, and a computer-readable recording medium with a program making a computer execute the method recording therein Grant 7,512,801 - Akiyama , et al. March 31, 2 | 2009-03-31 |
Software reproduction apparatus Grant RE40,547 - Akiyama , et al. October 21, 2 | 2008-10-21 |
Valid medium management system Grant 7,421,078 - Akiyama September 2, 2 | 2008-09-02 |
Encryption process, encryption device, and computer-readable medium storing encryption program App 20080144809 - Okubo; Shigeyuki ;   et al. | 2008-06-19 |
Time stamp apparatus, time correcting method, and time correcting program App 20080022116 - Akiyama; Ryota | 2008-01-24 |
Time stamp apparatus, time correcting method, and time correcting program App 20070300065 - Akiyama; Ryota | 2007-12-27 |
Storage medium for preventing an irregular use by a third party Grant RE39,802 - Hasebe , et al. August 28, 2 | 2007-08-28 |
Method and apparatus for time calibration Grant 7,257,393 - Akiyama , et al. August 14, 2 | 2007-08-14 |
Computer-readable recording medium recording a character code encryption program, and a character code encryption method App 20070064946 - Ohkubo; Shigeyuki ;   et al. | 2007-03-22 |
Storage apparatus Grant 7,154,824 - Aoyama , et al. December 26, 2 | 2006-12-26 |
Method and apparatus for time calibration App 20060194573 - Akiyama; Ryota ;   et al. | 2006-08-31 |
Method of supplying power to time-stamping device, security device, and time-correcting device App 20060195697 - Akiyama; Ryota ;   et al. | 2006-08-31 |
File processing unit Grant 7,013,392 - Sasaki , et al. March 14, 2 | 2006-03-14 |
Cryptographic communication method, file access system and recording medium Grant 7,010,127 - Kotani , et al. March 7, 2 | 2006-03-07 |
Apparatus to create and/or verify digital signatures having a secure time element and an identifier of the apparatus Grant 7,000,114 - Hasebe , et al. February 14, 2 | 2006-02-14 |
Cationic polymerizable adhesive composition and anisotropically electroconductive adhesive composition App 20050256230 - Yamaguchi, Hiroaki ;   et al. | 2005-11-17 |
Storage apparatus and access control method Grant 6,944,734 - Anzai , et al. September 13, 2 | 2005-09-13 |
Time management apparatus and time management method App 20050152213 - Akiyama, Ryota ;   et al. | 2005-07-14 |
Optical information recording medium App 20050058028 - Aoyama, Nobuhide ;   et al. | 2005-03-17 |
Method for distributing software App 20050055313 - Sasaki, Takaoki ;   et al. | 2005-03-10 |
Security system using optical information recording medium App 20050018848 - Aoyama, Nobuhide ;   et al. | 2005-01-27 |
Cationic polymerizable adhesive composition and anisotropically electroconductive adhesive composition App 20040266913 - Yamaguchi, Hiroaki ;   et al. | 2004-12-30 |
Storage apparatus App 20040240326 - Aoyama, Nobuhide ;   et al. | 2004-12-02 |
Device for generating, detecting, recording, and reproducing a watermarked moving image having a copy preventing capability and storage medium for storing program or the moving image Grant 6,700,989 - Itoh , et al. March 2, 2 | 2004-03-02 |
Software encoding using a combination of two types of encoding and encoding type identification information Grant 6,636,970 - Akiyama , et al. October 21, 2 | 2003-10-21 |
Original creating apparatus and originality guaranteeing apparatus App 20030159045 - Nishimoto, Katsushi ;   et al. | 2003-08-21 |
Data storage apparatus, data storing method, data verification apparatus, data access permission apparatus, and program and storage medium therefor App 20030145182 - Naito, Kazunori ;   et al. | 2003-07-31 |
Valid medium management system App 20030142825 - Akiyama, Ryota | 2003-07-31 |
Software Encoding And Decoding Method And Software Encryption System And Software Decoding System App 20030084310 - AKIYAMA, RYOTA ;   et al. | 2003-05-01 |
Encryption processing system Grant 6,460,137 - Akiyama , et al. October 1, 2 | 2002-10-01 |
Storage apparatus and access control method App 20010037357 - Anzai, Ichiro ;   et al. | 2001-11-01 |
Cryptographic communication method, file access system and recording medium App 20010009582 - Kotani, Seigo ;   et al. | 2001-07-26 |
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 |
Device and method for controlling communication Grant 5,832,210 - Akiyama , 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 |
Software reproduction apparatus Grant 5,812,661 - Akiyama , et al. September 22, 1 | 1998-09-22 |
Data reproducing device Grant 5,812,663 - Akiyama , et al. September 22, 1 | 1998-09-22 |
Software copying system Grant 5,805,699 - Akiyama , et al. September 8, 1 | 1998-09-08 |
Storage medium for preventing an irregular use by a third party Grant 5,796,824 - Hasebe , et al. August 18, 1 | 1998-08-18 |
System for and method of authenticating a client Grant 5,784,464 - Akiyama , et al. July 21, 1 | 1998-07-21 |
False statement detection system Grant 5,774,651 - Akiyama , et al. June 30, 1 | 1998-06-30 |
Data management module, data reproduction management device and data reproduction management system Grant 5,737,415 - Akiyama , et al. April 7, 1 | 1998-04-07 |
Information distribution system wherein storage medium storing ciphered information is distributed Grant 5,737,413 - Akiyama , et al. April 7, 1 | 1998-04-07 |
Transformation pattern generating device and encryption function device Grant 5,623,548 - Akiyama , et al. April 22, 1 | 1997-04-22 |
Enciphered file sharing method Grant 5,584,022 - Kikuchi , et al. December 10, 1 | 1996-12-10 |
Storage medium for preventing an illegal use by a third party Grant 5,555,304 - Hasebe , et al. * September 10, 1 | 1996-09-10 |
Electronic cashless transaction system Grant 5,539,825 - Akiyama , et al. July 23, 1 | 1996-07-23 |
Modular arithmetic operation system Grant 5,499,299 - Takenaka , et al. March 12, 1 | 1996-03-12 |
Information distribution system wherein storage medium storing ciphered information is distributed Grant 5,440,631 - Akiyama , et al. August 8, 1 | 1995-08-08 |
Electronic cashless transaction system Grant 5,428,684 - Akiyama , et al. June 27, 1 | 1995-06-27 |
Electronic data protection system Grant 5,392,351 - Hasebe , et al. February 21, 1 | 1995-02-21 |
Method of registering identification number in personal communication terminal Grant 5,386,468 - Akiyama , et al. January 31, 1 | 1995-01-31 |
Encryption communication system Grant 5,325,433 - Torii , et al. June 28, 1 | 1994-06-28 |
Voice band splitting scrambler Grant 5,065,430 - Torii , et al. November 12, 1 | 1991-11-12 |