Ryota Akiyama

Person

Hachioji-city, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of producing segmented chips
- Patent number 8,021,964
- Issue date Sep 20, 2011
- 3M Innovative Properties Company
- Ryota Akiyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Encryption process, encryption device, and computer-readable medium...
- Patent number 7,961,871
- Issue date Jun 14, 2011
- Fujitsu Broad Solution & Consulting Inc.
- Shigeyuki Okubo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Time management apparatus and time management method
- Patent number 7,555,651
- Issue date Jun 30, 2009
- Fujitsu Limited
- Ryota Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Authentication system, authentication method, signing apparatus, si...
- Patent number 7,512,801
- Issue date Mar 31, 2009
- Fujitsu Limited
- Ryota Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Software reproduction apparatus
- Patent number RE40547
- Issue date Oct 21, 2008
- Fujitsu Limited
- Ryota Akiyama
- 705 - Data processing: financial, business practice, management, or cost/pric...
Information Patent Grant
Valid medium management system
- Patent number 7,421,078
- Issue date Sep 2, 2008
- Fujitsu Limited
- Ryota Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Storage medium for preventing an irregular use by a third party
- Patent number RE39802
- Issue date Aug 28, 2007
- Fujitsu Limited
- Takayuki Hasebe
- 713 - Electrical computers and digital processing systems: support
Information Patent Grant
Method and apparatus for time calibration
- Patent number 7,257,393
- Issue date Aug 14, 2007
- Fujitsu Limited
- Ryota Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Storage apparatus
- Patent number 7,154,824
- Issue date Dec 26, 2006
- Fujitsu Limited
- Nobuhide Aoyama
- G11 - INFORMATION STORAGE
Information Patent Grant
File processing unit
- Patent number 7,013,392
- Issue date Mar 14, 2006
- Fujitsu Limited
- Takaoki Sasaki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Cryptographic communication method, file access system and recordin...
- Patent number 7,010,127
- Issue date Mar 7, 2006
- Fujitsu Limited
- Seigo Kotani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus to create and/or verify digital signatures having a secur...
- Patent number 7,000,114
- Issue date Feb 14, 2006
- Fujitsu Limited
- Takayuki Hasebe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Storage apparatus and access control method
- Patent number 6,944,734
- Issue date Sep 13, 2005
- Fujitsu Limited
- Ichiro Anzai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Device for generating, detecting, recording, and reproducing a wate...
- Patent number 6,700,989
- Issue date Mar 2, 2004
- Fujitsu Limited
- Hiroyasu Itoh
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Software encoding using a combination of two types of encoding and...
- Patent number 6,636,970
- Issue date Oct 21, 2003
- Fujitsu Limited
- Ryota Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Encryption processing system
- Patent number 6,460,137
- Issue date Oct 1, 2002
- Fujitsu Limited
- Ryota Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of and apparatus for retaining and verifying of data on reco...
- Patent number 6,144,745
- Issue date Nov 7, 2000
- Fujitsu Limited
- Ryota Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
System for management of software employing memory for processing u...
- Patent number 6,067,640
- Issue date May 23, 2000
- Fujitsu Limited
- Ryota Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Device and method for controlling communication
- Patent number 5,832,210
- Issue date Nov 3, 1998
- Fujitsu Limited
- Ryota Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System for management of software employing memory for processing u...
- Patent number 5,822,771
- Issue date Oct 13, 1998
- Fujitsu Limited
- Ryota Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Data reproducing device
- Patent number 5,812,663
- Issue date Sep 22, 1998
- Fujitsu Limited
- Ryota Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Software reproduction apparatus
- Patent number 5,812,661
- Issue date Sep 22, 1998
- Fujitsu Limited
- Ryota Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Software copying system
- Patent number 5,805,699
- Issue date Sep 8, 1998
- Fujitsu Limited
- Ryota Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Storage medium for preventing an irregular use by a third party
- Patent number 5,796,824
- Issue date Aug 18, 1998
- Fujitsu Limited
- Takayuki Hasebe
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Scrambling and descrambling of data with improved security
- Patent number 5,787,179
- Issue date Jul 28, 1998
- Fujitsu Ltd.
- Kiyotaka Ogawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System for and method of authenticating a client
- Patent number 5,784,464
- Issue date Jul 21, 1998
- Fujitsu Limited
- Ryota Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
False statement detection system
- Patent number 5,774,651
- Issue date Jun 30, 1998
- Fujitsu Limited
- Ryota Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Key authentication method and key authentication apparatus
- Patent number 5,768,387
- Issue date Jun 16, 1998
- Fujitsu Limited
- Ryota Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Data management module, data reproduction management device and dat...
- Patent number 5,737,415
- Issue date Apr 7, 1998
- Fujitsu Limited
- Ryota Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Information distribution system wherein storage medium storing ciph...
- Patent number 5,737,413
- Issue date Apr 7, 1998
- Fujitsu Limited
- Ryota Akiyama
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF MANUFACTURING WAFER LAMINATED BODY, DEVICE OF MANUFACTURI...
- Publication number 20110151176
- Publication date Jun 23, 2011
- Ryota Akiyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD OF PRODUCING SEGMENTED CHIPS
- Publication number 20100233867
- Publication date Sep 16, 2010
- Ryota Akiyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Encryption process, encryption device, and computer-readable medium...
- Publication number 20080144809
- Publication date Jun 19, 2008
- FUJITSU BROAD SOLUTION & CONSULTING INC.
- Shigeyuki Okubo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Time stamp apparatus, time correcting method, and time correcting p...
- Publication number 20080022116
- Publication date Jan 24, 2008
- Fujitsu Limited
- Ryota Akiyama
- G04 - HOROLOGY
Information Patent Application
Time stamp apparatus, time correcting method, and time correcting p...
- Publication number 20070300065
- Publication date Dec 27, 2007
- Fujitsu Limited
- Ryota Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Computer-readable recording medium recording a character code encry...
- Publication number 20070064946
- Publication date Mar 22, 2007
- FUJITSU BROAD SOLUTION & CONSULTING INC.
- Shigeyuki Ohkubo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method of supplying power to time-stamping device, security device,...
- Publication number 20060195697
- Publication date Aug 31, 2006
- FUJITSU LIMITED & CITIZEN WATCH CO., LTD.
- Ryota Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for time calibration
- Publication number 20060194573
- Publication date Aug 31, 2006
- FUJITSU LIMITED & CITIZEN WATCH CO., LTD.
- Ryota Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Cationic polymerizable adhesive composition and anisotropically ele...
- Publication number 20050256230
- Publication date Nov 17, 2005
- Hiroaki Yamaguchi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Time management apparatus and time management method
- Publication number 20050152213
- Publication date Jul 14, 2005
- FUJITSU LIMITED
- Ryota Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Optical information recording medium
- Publication number 20050058028
- Publication date Mar 17, 2005
- FUJITSU LIMITED
- Nobuhide Aoyama
- G11 - INFORMATION STORAGE
Information Patent Application
Method for distributing software
- Publication number 20050055313
- Publication date Mar 10, 2005
- Takaoki Sasaki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Security system using optical information recording medium
- Publication number 20050018848
- Publication date Jan 27, 2005
- FUJITSU LIMITED
- Nobuhide Aoyama
- G11 - INFORMATION STORAGE
Information Patent Application
Cationic polymerizable adhesive composition and anisotropically ele...
- Publication number 20040266913
- Publication date Dec 30, 2004
- Hiroaki Yamaguchi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Storage apparatus
- Publication number 20040240326
- Publication date Dec 2, 2004
- FUJITSU LIMITED
- Nobuhide Aoyama
- G11 - INFORMATION STORAGE
Information Patent Application
Original creating apparatus and originality guaranteeing apparatus
- Publication number 20030159045
- Publication date Aug 21, 2003
- FUJITSU LIMITED
- Katsushi Nishimoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Valid medium management system
- Publication number 20030142825
- Publication date Jul 31, 2003
- FUJITSU LIMITED
- Ryota Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Data storage apparatus, data storing method, data verification appa...
- Publication number 20030145182
- Publication date Jul 31, 2003
- FUJITSU LIMITED
- Kazunori Naito
- G11 - INFORMATION STORAGE
Information Patent Application
SOFTWARE ENCODING AND DECODING METHOD AND SOFTWARE ENCRYPTION SYSTE...
- Publication number 20030084310
- Publication date May 1, 2003
- RYOTA AKIYAMA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Storage apparatus and access control method
- Publication number 20010037357
- Publication date Nov 1, 2001
- FUJITSU LIMITED
- Ichiro Anzai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Cryptographic communication method, file access system and recordin...
- Publication number 20010009582
- Publication date Jul 26, 2001
- Seigo Kotani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Ryota Akiyama

Person

Patents Grantslast 30 patents

Method of producing segmented chips

Encryption process, encryption device, and computer-readable medium...

Time management apparatus and time management method

Authentication system, authentication method, signing apparatus, si...

Software reproduction apparatus

Valid medium management system

Storage medium for preventing an irregular use by a third party

Method and apparatus for time calibration

Storage apparatus

File processing unit

Cryptographic communication method, file access system and recordin...

Apparatus to create and/or verify digital signatures having a secur...

Storage apparatus and access control method

Device for generating, detecting, recording, and reproducing a wate...

Software encoding using a combination of two types of encoding and...

Encryption processing system

Method of and apparatus for retaining and verifying of data on reco...

System for management of software employing memory for processing u...

Device and method for controlling communication

System for management of software employing memory for processing u...

Data reproducing device

Software reproduction apparatus

Software copying system

Storage medium for preventing an irregular use by a third party

Scrambling and descrambling of data with improved security

System for and method of authenticating a client

False statement detection system

Key authentication method and key authentication apparatus

Data management module, data reproduction management device and dat...

Information distribution system wherein storage medium storing ciph...

Patents Applicationslast 30 patents

METHOD OF MANUFACTURING WAFER LAMINATED BODY, DEVICE OF MANUFACTURI...

METHOD OF PRODUCING SEGMENTED CHIPS

Encryption process, encryption device, and computer-readable medium...

Time stamp apparatus, time correcting method, and time correcting p...

Time stamp apparatus, time correcting method, and time correcting p...

Computer-readable recording medium recording a character code encry...

Method of supplying power to time-stamping device, security device,...

Method and apparatus for time calibration

Cationic polymerizable adhesive composition and anisotropically ele...

Time management apparatus and time management method

Optical information recording medium

Method for distributing software

Security system using optical information recording medium

Cationic polymerizable adhesive composition and anisotropically ele...

Storage apparatus

Original creating apparatus and originality guaranteeing apparatus

Valid medium management system

Data storage apparatus, data storing method, data verification appa...

SOFTWARE ENCODING AND DECODING METHOD AND SOFTWARE ENCRYPTION SYSTE...

Storage apparatus and access control method

Cryptographic communication method, file access system and recordin...