Hirofumi Muratani

Person

Minato-ku, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Authentication device, output device, verification device and input...
- Patent number 9,509,492
- Issue date Nov 29, 2016
- Kabushiki Kaisha Toshiba
- Ben Smyth
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Public key cryptography computing device
- Patent number 9,280,518
- Issue date Mar 8, 2016
- Kabushiki Kaisha Toshiba
- Tomoko Yonemura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Decompressing apparatus and compressing apparatus
- Patent number 8,934,631
- Issue date Jan 13, 2015
- Kabushiki Kaisha Toshiba
- Yoshikazu Hanatani
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Arithmetic device, method, and program product
- Patent number 8,924,448
- Issue date Dec 30, 2014
- Kabushiki Kaisha Toshiba
- Taichi Isogai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Arithmetic device
- Patent number 8,782,114
- Issue date Jul 15, 2014
- Kabushiki Kaisha Toshiba
- Tomoko Yonemura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for performing data compression processing using algebrai...
- Patent number 8,675,874
- Issue date Mar 18, 2014
- Kabushiki Kaisha Toshiba
- Hirofumi Muratani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Exponentiation calculation apparatus and method for calculating squ...
- Patent number 8,543,630
- Issue date Sep 24, 2013
- Kabushiki Kaisha Toshiba
- Tomoko Yonemura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Representation converting apparatus, arithmetic apparatus, represen...
- Patent number 8,533,243
- Issue date Sep 10, 2013
- Kabushiki Kaisha Toshiba
- Tomoko Yonemura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Exponentiation calculation apparatus and method for calculating squ...
- Patent number 8,438,205
- Issue date May 7, 2013
- Kabushiki Kaisha Toshiba
- Tomoko Yonemura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Apparatus and computer program product for performing data compress...
- Patent number 8,233,616
- Issue date Jul 31, 2012
- Kabushiki Kaisha Toshiba
- Hirofumi Muratani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital watermark embedding apparatus, digital watermark detecting...
- Patent number 7,826,637
- Issue date Nov 2, 2010
- Kabushiki Kaisha Toshiba
- Hirofumi Muratani
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Digital watermark embedding apparatus, method and program, and digi...
- Patent number 7,646,882
- Issue date Jan 12, 2010
- Kabushiki Kaisha Toshiba
- Hirofumi Muratani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Code generating method and unit thereof, code detecting method and...
- Patent number 7,624,273
- Issue date Nov 24, 2009
- Kabushiki Kaisha Toshiba
- Hirofumi Muratani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital watermark embedding apparatus and method, and digital water...
- Patent number 7,613,320
- Issue date Nov 3, 2009
- Kabushiki Kaisha Toshiba
- Hirofumi Muratani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Rendering device, recording device, copy control method, and program
- Patent number 7,578,000
- Issue date Aug 18, 2009
- Kabushiki Kaisha Toshiba
- Toru Kambayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital watermark embedding apparatus and method, and digital water...
- Patent number 7,443,999
- Issue date Oct 28, 2008
- Kabushiki Kaisha Toshiba
- Hirofumi Muratani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Identification information embedding apparatus and identification i...
- Patent number 7,346,777
- Issue date Mar 18, 2008
- Kabushiki Kaisha Toshiba
- Hirofumi Muratani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Encryption apparatus and method, and decryption apparatus and metho...
- Patent number 7,305,085
- Issue date Dec 4, 2007
- Kabushiki Kaisha Toshiba
- Kenji Ohkuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Encryption apparatus and method, and decryption apparatus and metho...
- Patent number 7,227,948
- Issue date Jun 5, 2007
- Kabushiki Kaisha Toshiba
- Kenji Ohkuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Encryption apparatus and method, and decryption apparatus and metho...
- Patent number 7,209,556
- Issue date Apr 24, 2007
- Kabushiki Kaisha Toshiba
- Kenji Ohkuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Encryption apparatus, decryption apparatus, expanded key generating...
- Patent number 7,194,090
- Issue date Mar 20, 2007
- Kabushiki Kaisha Toshiba
- Hirofumi Muratani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital watermark embedding method, digital watermark embedding app...
- Patent number 7,123,744
- Issue date Oct 17, 2006
- Kabushiki Kaisha Toshiba
- Hirofumi Muratani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital watermark detecting device and method thereof
- Patent number 7,099,493
- Issue date Aug 29, 2006
- Kabushiki Kaisha Toshiba
- Hirofumi Muratani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Code generating method and unit thereof, code detecting method and...
- Patent number 7,082,537
- Issue date Jul 25, 2006
- Kabushiki Kaisha Toshiba
- Hirofumi Muratani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic watermark detection apparatus and method
- Patent number 6,985,602
- Issue date Jan 10, 2006
- Kabushiki Kaisha Toshiba
- Hirofumi Muratani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital watermark detecting device and method thereof
- Patent number 6,983,059
- Issue date Jan 3, 2006
- Kabushiki Kaisha Toshiba
- Hirofumi Muratani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital watermark embedding method and apparatus, and digital water...
- Patent number 6,952,486
- Issue date Oct 4, 2005
- Kabushiki Kaisha Toshiba
- Tomoo Yamakage
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Code generating method and unit thereof, code detecting method and...
- Patent number 6,901,515
- Issue date May 31, 2005
- Kabushiki Kaisha Toshiba
- Hirofumi Muratani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic watermark detection apparatus and method
- Patent number 6,804,375
- Issue date Oct 12, 2004
- Kabushiki Kaisha Toshiba
- Hirofumi Muratani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital watermark embedding device, digital watermark detection dev...
- Patent number 6,768,807
- Issue date Jul 27, 2004
- Kabushiki Kaisha Toshiba
- Hirofumi Muratani
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
INFORMATION PROCESSING APPARATUS
- Publication number 20180270014
- Publication date Sep 20, 2018
- KABUSHIKI KAISHA TOSHIBA
- Hirofumi MURATANI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
COMPUTING DEVICE, COMPUTING METHOD, AND COMPUTER PROGRAM PRODUCT
- Publication number 20140337403
- Publication date Nov 13, 2014
- Kabushiki Kaisha Toshiba
- Tomoko Yonemura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
AUTHENTICATION DEVICE, OUTPUT DEVICE, VERIFICATION DEVICE AND INPUT...
- Publication number 20140334622
- Publication date Nov 13, 2014
- KABUSHIKI KAISHA TOSHIBA
- Ben SMYTH
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
COMPUTING DEVICE
- Publication number 20130246489
- Publication date Sep 19, 2013
- Tomoko YONEMURA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
EXPONENTIATION CALCULATION APPARATUS AND METHOD FOR CALCULATING SQU...
- Publication number 20130218939
- Publication date Aug 22, 2013
- Kabushiki Kaisha Toshiba
- Tomoko YONEMURA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ARITHMETIC DEVICE, METHOD, AND PROGRAM PRODUCT
- Publication number 20120239721
- Publication date Sep 20, 2012
- KABUSHIKI KAISHA TOSHIBA
- Taichi ISOGAI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DECOMPRESSING APPARATUS AND COMPRESSING APPARATUS
- Publication number 20120150931
- Publication date Jun 14, 2012
- Kabushiki Kaisha Toshiba
- Yoshikazu HANATANI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ARITHMETIC DEVICE
- Publication number 20120124114
- Publication date May 17, 2012
- Kabushiki Kaisha Toshiba
- Tomoko Yonemura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
COMPUTING DEVICE, METHOD, AND COMPUTER PROGRAM PRODUCT
- Publication number 20100063986
- Publication date Mar 11, 2010
- Kabushiki Kaisha Toshiba
- Tomoko YONEMURA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
APPARATUS AND COMPUTER PROGRAM PRODUCT FOR PERFORMING DATA COMPRESS...
- Publication number 20100046742
- Publication date Feb 25, 2010
- Kabushiki Kaisha Toshiba
- Hirofumi MURATANI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
APPARATUS FOR PERFORMING DATA COMPRESSION PROCESSING USING ALGEBRAI...
- Publication number 20100046743
- Publication date Feb 25, 2010
- Kabushiki Kaisha Toshiba
- Hirofumi MURATANI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ENCRYPTING APPARATUS, DECRYPTING APPARATUS, CRYPTOCOMMUNICATION SYS...
- Publication number 20100046745
- Publication date Feb 25, 2010
- Kabushiki Kaisha Toshiba
- Yoshikazu HANATANI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
APPARATUS, METHOD, AND COMPUTER PROGRAM PRODUCT FOR DECRYPTING, AND...
- Publication number 20100046741
- Publication date Feb 25, 2010
- Kabushiki Kaisha Toshiba
- Taichi ISOGAI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PARAMETER GENERATING DEVICE AND CRYPTOGRAPHIC PROCESSING SYSTEM
- Publication number 20100046746
- Publication date Feb 25, 2010
- Kabushiki Kaisha Toshiba
- Tomoko YONEMURA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
REPRESENTATION CONVERTING APPARATUS, ARITHMETIC APPARATUS, REPRESEN...
- Publication number 20100049777
- Publication date Feb 25, 2010
- Kabushiki Kaisha Toshiba
- Tomoko Yonemura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DECRYPTION PROCESSING APPARATUS, SYSTEM, METHOD, AND COMPUTER PROGR...
- Publication number 20090207999
- Publication date Aug 20, 2009
- Kabushiki Kaisha Toshiba
- Tomoko Yonemura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PIRATE USER DETECTING APPARATUS, COLLUSION-SECURE CODE GENERATING A...
- Publication number 20090183258
- Publication date Jul 16, 2009
- KABUSHIKI KAISHA TOSHIBA
- Taichi ISOGAI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DIGITAL WATERMARK EMBEDDING APPARATUS AND METHOD, AND DIGITAL WATER...
- Publication number 20090049304
- Publication date Feb 19, 2009
- Hirofumi Muratani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
IDENTIFICATION INFORMATION EMBEDDING APPARATUS AND IDENTIFICATION I...
- Publication number 20070266255
- Publication date Nov 15, 2007
- Hirofumi Muratani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
IDENTIFICATION INFORMATION EMBEDDING APPARATUS AND IDENTIFICATION I...
- Publication number 20070255956
- Publication date Nov 1, 2007
- Hirofumi Muratani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Cryptographic protocol security verification apparatus, cryptograph...
- Publication number 20070098151
- Publication date May 3, 2007
- KABUSHIKI KAISHA TOSHIBA
- Hirofumi Muratani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ENCRYPTION APPARATUS AND METHOD, AND DECRYPTION APPARATUS AND METHO...
- Publication number 20070058805
- Publication date Mar 15, 2007
- Kenji Ohkuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Digital watermark embedding apparatus, digital watermark detecting...
- Publication number 20060120561
- Publication date Jun 8, 2006
- Hirofumi Muratani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Digital watermark detection apparatus and digital watermark detecti...
- Publication number 20060104477
- Publication date May 18, 2006
- Kabushiki Kaisha Toshiba
- Taichi Isogai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Digital watermark detecting device and method thereof
- Publication number 20060023913
- Publication date Feb 2, 2006
- Hirofumi Muratani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for embedding codes, method and apparatus for restoring iden...
- Publication number 20050154893
- Publication date Jul 14, 2005
- Hirofumi Muratani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Identification information embedding apparatus, analysis apparatus,...
- Publication number 20050086484
- Publication date Apr 21, 2005
- Kabushiki Kaisha Toshiba
- Hirofumi Muratani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Electronic watermark detection apparatus and method
- Publication number 20050025339
- Publication date Feb 3, 2005
- Kabushiki Kaisha Toshiba
- Hirofumi Muratani
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Digital watermark embedding method and apparatus, and digital water...
- Publication number 20040184637
- Publication date Sep 23, 2004
- Tomoo Yamakage
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Code generating method and unit thereof, code detecting method and...
- Publication number 20040153941
- Publication date Aug 5, 2004
- Hirofumi Muratani
- G06 - COMPUTING CALCULATING COUNTING

Hirofumi Muratani

Person

Patents Grantslast 30 patents

Authentication device, output device, verification device and input...

Public key cryptography computing device

Decompressing apparatus and compressing apparatus

Arithmetic device, method, and program product

Arithmetic device

Apparatus for performing data compression processing using algebrai...

Exponentiation calculation apparatus and method for calculating squ...

Representation converting apparatus, arithmetic apparatus, represen...

Exponentiation calculation apparatus and method for calculating squ...

Apparatus and computer program product for performing data compress...

Digital watermark embedding apparatus, digital watermark detecting...

Digital watermark embedding apparatus, method and program, and digi...

Code generating method and unit thereof, code detecting method and...

Digital watermark embedding apparatus and method, and digital water...

Rendering device, recording device, copy control method, and program

Digital watermark embedding apparatus and method, and digital water...

Identification information embedding apparatus and identification i...

Encryption apparatus and method, and decryption apparatus and metho...

Encryption apparatus and method, and decryption apparatus and metho...

Encryption apparatus and method, and decryption apparatus and metho...

Encryption apparatus, decryption apparatus, expanded key generating...

Digital watermark embedding method, digital watermark embedding app...

Digital watermark detecting device and method thereof

Code generating method and unit thereof, code detecting method and...

Electronic watermark detection apparatus and method

Digital watermark detecting device and method thereof

Digital watermark embedding method and apparatus, and digital water...

Code generating method and unit thereof, code detecting method and...

Electronic watermark detection apparatus and method

Digital watermark embedding device, digital watermark detection dev...

Patents Applicationslast 30 patents

INFORMATION PROCESSING APPARATUS

COMPUTING DEVICE, COMPUTING METHOD, AND COMPUTER PROGRAM PRODUCT

AUTHENTICATION DEVICE, OUTPUT DEVICE, VERIFICATION DEVICE AND INPUT...

COMPUTING DEVICE

EXPONENTIATION CALCULATION APPARATUS AND METHOD FOR CALCULATING SQU...

ARITHMETIC DEVICE, METHOD, AND PROGRAM PRODUCT

DECOMPRESSING APPARATUS AND COMPRESSING APPARATUS

ARITHMETIC DEVICE

COMPUTING DEVICE, METHOD, AND COMPUTER PROGRAM PRODUCT

APPARATUS AND COMPUTER PROGRAM PRODUCT FOR PERFORMING DATA COMPRESS...

APPARATUS FOR PERFORMING DATA COMPRESSION PROCESSING USING ALGEBRAI...

ENCRYPTING APPARATUS, DECRYPTING APPARATUS, CRYPTOCOMMUNICATION SYS...

APPARATUS, METHOD, AND COMPUTER PROGRAM PRODUCT FOR DECRYPTING, AND...

PARAMETER GENERATING DEVICE AND CRYPTOGRAPHIC PROCESSING SYSTEM

REPRESENTATION CONVERTING APPARATUS, ARITHMETIC APPARATUS, REPRESEN...

DECRYPTION PROCESSING APPARATUS, SYSTEM, METHOD, AND COMPUTER PROGR...

PIRATE USER DETECTING APPARATUS, COLLUSION-SECURE CODE GENERATING A...

DIGITAL WATERMARK EMBEDDING APPARATUS AND METHOD, AND DIGITAL WATER...

IDENTIFICATION INFORMATION EMBEDDING APPARATUS AND IDENTIFICATION I...

IDENTIFICATION INFORMATION EMBEDDING APPARATUS AND IDENTIFICATION I...

Cryptographic protocol security verification apparatus, cryptograph...

ENCRYPTION APPARATUS AND METHOD, AND DECRYPTION APPARATUS AND METHO...

Digital watermark embedding apparatus, digital watermark detecting...

Digital watermark detection apparatus and digital watermark detecti...

Digital watermark detecting device and method thereof

Method for embedding codes, method and apparatus for restoring iden...

Identification information embedding apparatus, analysis apparatus,...

Electronic watermark detection apparatus and method

Digital watermark embedding method and apparatus, and digital water...

Code generating method and unit thereof, code detecting method and...