KOICHIRO AKIYAMA

Person

KANAGAWA-KEN, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Encryption device, decryption device, encryption method, decryption...
- Patent number 12,034,850
- Issue date Jul 9, 2024
- Kabushiki Kaisha Toshiba
- Koichiro Akiyama
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Encryption device, decryption device, encryption method, decryption...
- Patent number 11,288,985
- Issue date Mar 29, 2022
- Kabushiki Kaisha Toshiba
- Koichiro Akiyama
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Symmetric encryption apparatus and storage medium, and symmetric de...
- Patent number 9,413,729
- Issue date Aug 9, 2016
- Kabushiki Kaisha Toshiba
- Yuichi Komano
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital signature generation apparatus, digital signature verificat...
- Patent number 8,832,438
- Issue date Sep 9, 2014
- Kabushiki Kaisha Toshiba
- Koichiro Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital signature generation apparatus, digital signature verificat...
- Patent number 8,458,471
- Issue date Jun 4, 2013
- Kabushiki Kaisha Toshiba
- Koichiro Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Encryption apparatus, decryption apparatus, key generation apparatu...
- Patent number 8,311,215
- Issue date Nov 13, 2012
- Kabushiki Kaisha Toshiba
- Koichiro Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for digital content editing
- Patent number 8,266,061
- Issue date Sep 11, 2012
- Kabushiki Kaisha Toshiba
- Satoshi Ito
- G11 - INFORMATION STORAGE
Information Patent Grant
Playlist composition apparatus, copyright management apparatus and...
- Patent number 8,065,416
- Issue date Nov 22, 2011
- Kabushiki Kaisha Toshiba
- Toshiyuki Kito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital signature generation apparatus, digital signature verificat...
- Patent number 8,046,582
- Issue date Oct 25, 2011
- Kabushiki Kaisha Toshiba
- Koichiro Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital signature generation apparatus, digital signature verificat...
- Patent number 7,836,304
- Issue date Nov 16, 2010
- Kabushiki Kaisha Toshiba
- Koichiro Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Key generating apparatus, program, and method
- Patent number 7,787,623
- Issue date Aug 31, 2010
- Kabushiki Kaisha Toshiba
- Koichiro Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Encryption apparatus, decryption apparatus, and method
- Patent number 7,773,747
- Issue date Aug 10, 2010
- Kabushiki Kaisha Toshiba
- Koichiro Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Information recording apparatus, information reproducing apparatus,...
- Patent number 7,747,871
- Issue date Jun 29, 2010
- Kabushiki Kaisha Toshiba
- Toru Kambayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Packet filtering apparatus, packet filtering method, and computer p...
- Patent number 7,733,844
- Issue date Jun 8, 2010
- Kabushiki Kaisha Toshiba
- Toshiyuki Kito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Encryption apparatus, decryption apparatus, key generation apparatu...
- Patent number 7,688,973
- Issue date Mar 30, 2010
- Kabushiki Kaisha Toshiba
- Koichiro Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for rendering digital content
- Patent number 7,672,905
- Issue date Mar 2, 2010
- Kabushiki Kaisha Toshiba
- Satoshi Ito
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Apparatus and method for rendering digital content
- Patent number 7,490,068
- Issue date Feb 10, 2009
- Kabushiki Kaisha Toshiba
- Satoshi Ito
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Scheme for realizing communications through external network from c...
- Patent number 7,450,596
- Issue date Nov 11, 2008
- Kabushiki Kaisha Toshiba
- Takeshi Saito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Information recording device and information reproducing device
- Patent number 7,389,272
- Issue date Jun 17, 2008
- Kabushiki Kaisha Toshiba
- Toru Kambayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Broadcast receiving method and apparatus and information distributi...
- Patent number 7,363,276
- Issue date Apr 22, 2008
- Kabushiki Kaisha Toshiba
- Koichiro Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Information recording apparatus, information reproducing apparatus,...
- Patent number 7,343,495
- Issue date Mar 11, 2008
- Kabushiki Kaisha Toshiba
- Toru Kambayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Information recording device and information reproducing device
- Patent number 7,127,431
- Issue date Oct 24, 2006
- Kabushiki Kaisha Toshiba
- Toru Kambayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Broadcast receiving method and apparatus and information distributi...
- Patent number 7,072,865
- Issue date Jul 4, 2006
- Kabushiki Kaisha Toshiba
- Koichiro Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Scheme for realizing communications through external network from c...
- Patent number 7,023,862
- Issue date Apr 4, 2006
- Kabushiki Kaisha Toshiba
- Takeshi Saito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Information recording device and information reproducing device
- Patent number 6,941,283
- Issue date Sep 6, 2005
- Kabushiki Akisha Toshiba
- Toru Kambayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Information recording device and information reproducting device
- Patent number 6,772,133
- Issue date Aug 3, 2004
- Kabushiki Kaisha Toshiba
- Toru Kambayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Scheme for realizing communications through external network from c...
- Patent number 6,665,303
- Issue date Dec 16, 2003
- Kabushiki Kaisha Toshiba
- Takeshi Saito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Broadcast reception device and contract management device using com...
- Patent number 6,650,752
- Issue date Nov 18, 2003
- Kabushiki Kaisha Toshiba
- Koichiro Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Broadcast reception device and contract management device using com...
- Patent number 6,650,754
- Issue date Nov 18, 2003
- Kabushiki Kaisha Toshiba
- Koichiro Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Information recording apparatus, information reproducing apparatus,...
- Patent number 6,477,649
- Issue date Nov 5, 2002
- Kabushiki Kaisha Toshiba
- Toru Kambayashi
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
ENCRYPTION DEVICE, DECRYPTION DEVICE, KEY GENERATION DEVICE, ENCRYP...
- Publication number 20240205006
- Publication date Jun 20, 2024
- Kabushiki Kaisha Toshiba
- Koichiro AKIYAMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ENCRYPTION DEVICE, KEY GENERATION DEVICE, AND COMPUTER PROGRAM PROD...
- Publication number 20240195607
- Publication date Jun 13, 2024
- Kabushiki Kaisha Toshiba
- Koichiro AKIYAMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ENCRYPTION DEVICE, DECRYPTION DEVICE, ENCRYPTION METHOD, DECRYPTION...
- Publication number 20220150064
- Publication date May 12, 2022
- Kabushiki Kaisha Toshiba
- Koichiro AKIYAMA
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
ENCRYPTION DEVICE, DECRYPTION DEVICE, ENCRYPTION METHOD, DECRYPTION...
- Publication number 20210248928
- Publication date Aug 12, 2021
- KABUSHIKI KAISHA TOSHIBA
- Koichiro AKIYAMA
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
SYMMETRIC ENCRYPTION APPARATUS AND STORAGE MEDIUM, AND SYMMETRIC DE...
- Publication number 20150172258
- Publication date Jun 18, 2015
- Kabushiki Kaisha Toshiba
- Yuichi KOMANO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PAIRING COMPUTATION APPARATUS, PAIRING COMPUTATION METHOD, AND COMP...
- Publication number 20150023496
- Publication date Jan 22, 2015
- KABUSHIKI KAISHA TOSHIBA
- Tomoko YONEMURA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DIGITAL SIGNATURE GENERATION APPARATUS, DIGITAL SIGNATURE VERIFICAT...
- Publication number 20130243193
- Publication date Sep 19, 2013
- Kabushiki Kaisha Toshiba
- Koichiro Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DIGITAL SIGNATURE GENERATION APPARATUS, DIGITAL SIGNATURE VERIFICAT...
- Publication number 20120011369
- Publication date Jan 12, 2012
- Kabushiki Kaisha Toshiba
- Koichiro Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Digital signature generation apparatus, digital signature verificat...
- Publication number 20110038478
- Publication date Feb 17, 2011
- Kabushiki Kaisha Toshiba
- Koichiro Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ENCRYPTION APPARATUS, DECRYPTION APPARATUS, KEY GENERATION APPARATU...
- Publication number 20100329447
- Publication date Dec 30, 2010
- Koichiro Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ENCRYPTION APPARATUS, DECRYPTION APPARATUS, KEY GENERATION APPARATU...
- Publication number 20100226496
- Publication date Sep 9, 2010
- Koichiro Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ENCRYPTION APPARATUS, DECRYPTION APPARATUS, KEY GENERATION APPARATU...
- Publication number 20090185680
- Publication date Jul 23, 2009
- Koichiro Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
APPARATUS AND METHOD FOR RENDERING DIGITAL CONTENT
- Publication number 20090138404
- Publication date May 28, 2009
- KABUSHIKI KAISHA TOSHIBA
- Satoshi Ito
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Digital signature generation apparatus, digital signature verificat...
- Publication number 20080037776
- Publication date Feb 14, 2008
- Koichiro Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ENCRYPTION APPARATUS, DECRYPTION APPARATUS, PROGRAM, AND METHOD
- Publication number 20080019511
- Publication date Jan 24, 2008
- Koichiro Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
KEY GENERATING APPARATUS, PROGRAM, AND METHOD
- Publication number 20070230692
- Publication date Oct 4, 2007
- Koichiro Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ENCRYPTION APPARATUS, DECRYPTION APPARATUS, AND METHOD
- Publication number 20070110232
- Publication date May 17, 2007
- Koichiro Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Playlist composition apparatus, copylight management apparatus and...
- Publication number 20060294201
- Publication date Dec 28, 2006
- KABUSHIKI KAISHA TOSHIBA
- Toshiyuki Kito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Encryption apparatus, decryption apparatus, key generation apparatu...
- Publication number 20060251247
- Publication date Nov 9, 2006
- Koichiro Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Broadcast receiving method and apparatus and information distributi...
- Publication number 20060212399
- Publication date Sep 21, 2006
- Koichiro Akiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Apparatus and method for rendering digital content
- Publication number 20060095974
- Publication date May 4, 2006
- Kabushiki Kaisha Toshiba
- Satoshi Ito
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Apparatus and method for digital content editing
- Publication number 20060080262
- Publication date Apr 13, 2006
- Kabushiki Kaisha Toshiba
- Satoshi Ito
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Encryption apparatus, decryption apparatus, key generation apparatu...
- Publication number 20050271203
- Publication date Dec 8, 2005
- Koichiro Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Packet filtering apparatus, packet filtering method, and computer p...
- Publication number 20050265343
- Publication date Dec 1, 2005
- Kabushiki Kaisha Toshiba
- Toshiyuki Kito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Reception management apparatus, broadcasting receiving device, info...
- Publication number 20050013440
- Publication date Jan 20, 2005
- Koichiro Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Scheme for realizing communications through external network from c...
- Publication number 20040100978
- Publication date May 27, 2004
- Kabushiki Kaisha Toshiba
- Takeshi Saito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Scheme for realizing communications through external network from c...
- Publication number 20040053051
- Publication date Mar 18, 2004
- KABUSHI KAISHA TOSHIBA
- Takeshi Saito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Information recording device and information reproducing device
- Publication number 20040030656
- Publication date Feb 12, 2004
- Toru Kambayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Information recording device and information reproducing device
- Publication number 20030191954
- Publication date Oct 9, 2003
- Toru Kambayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Point service providing system with mechanism for preventing illega...
- Publication number 20030163374
- Publication date Aug 28, 2003
- Kabushiki Kaisha Toshiba
- Koichiro Akiyama
- G06 - COMPUTING CALCULATING COUNTING

KOICHIRO AKIYAMA

Person

Patents Grantslast 30 patents

Encryption device, decryption device, encryption method, decryption...

Encryption device, decryption device, encryption method, decryption...

Symmetric encryption apparatus and storage medium, and symmetric de...

Digital signature generation apparatus, digital signature verificat...

Digital signature generation apparatus, digital signature verificat...

Encryption apparatus, decryption apparatus, key generation apparatu...

Apparatus and method for digital content editing

Playlist composition apparatus, copyright management apparatus and...

Digital signature generation apparatus, digital signature verificat...

Digital signature generation apparatus, digital signature verificat...

Key generating apparatus, program, and method

Encryption apparatus, decryption apparatus, and method

Information recording apparatus, information reproducing apparatus,...

Packet filtering apparatus, packet filtering method, and computer p...

Encryption apparatus, decryption apparatus, key generation apparatu...

Apparatus and method for rendering digital content

Apparatus and method for rendering digital content

Scheme for realizing communications through external network from c...

Information recording device and information reproducing device

Broadcast receiving method and apparatus and information distributi...

Information recording apparatus, information reproducing apparatus,...

Information recording device and information reproducing device

Broadcast receiving method and apparatus and information distributi...

Scheme for realizing communications through external network from c...

Information recording device and information reproducing device

Information recording device and information reproducting device

Scheme for realizing communications through external network from c...

Broadcast reception device and contract management device using com...

Broadcast reception device and contract management device using com...

Information recording apparatus, information reproducing apparatus,...

Patents Applicationslast 30 patents

ENCRYPTION DEVICE, DECRYPTION DEVICE, KEY GENERATION DEVICE, ENCRYP...

ENCRYPTION DEVICE, KEY GENERATION DEVICE, AND COMPUTER PROGRAM PROD...

ENCRYPTION DEVICE, DECRYPTION DEVICE, ENCRYPTION METHOD, DECRYPTION...

ENCRYPTION DEVICE, DECRYPTION DEVICE, ENCRYPTION METHOD, DECRYPTION...

SYMMETRIC ENCRYPTION APPARATUS AND STORAGE MEDIUM, AND SYMMETRIC DE...

PAIRING COMPUTATION APPARATUS, PAIRING COMPUTATION METHOD, AND COMP...

DIGITAL SIGNATURE GENERATION APPARATUS, DIGITAL SIGNATURE VERIFICAT...

DIGITAL SIGNATURE GENERATION APPARATUS, DIGITAL SIGNATURE VERIFICAT...

Digital signature generation apparatus, digital signature verificat...

ENCRYPTION APPARATUS, DECRYPTION APPARATUS, KEY GENERATION APPARATU...

ENCRYPTION APPARATUS, DECRYPTION APPARATUS, KEY GENERATION APPARATU...

ENCRYPTION APPARATUS, DECRYPTION APPARATUS, KEY GENERATION APPARATU...

APPARATUS AND METHOD FOR RENDERING DIGITAL CONTENT

Digital signature generation apparatus, digital signature verificat...

ENCRYPTION APPARATUS, DECRYPTION APPARATUS, PROGRAM, AND METHOD

KEY GENERATING APPARATUS, PROGRAM, AND METHOD

ENCRYPTION APPARATUS, DECRYPTION APPARATUS, AND METHOD

Playlist composition apparatus, copylight management apparatus and...

Encryption apparatus, decryption apparatus, key generation apparatu...

Broadcast receiving method and apparatus and information distributi...

Apparatus and method for rendering digital content

Apparatus and method for digital content editing

Encryption apparatus, decryption apparatus, key generation apparatu...

Packet filtering apparatus, packet filtering method, and computer p...

Reception management apparatus, broadcasting receiving device, info...

Scheme for realizing communications through external network from c...

Scheme for realizing communications through external network from c...

Information recording device and information reproducing device

Information recording device and information reproducing device

Point service providing system with mechanism for preventing illega...