MURATANI; Hirofumi

Patent Applications and Registrations

Patent applications and USPTO patent grants for MURATANI; Hirofumi.The latest application filed is for "information processing apparatus".

Company Profile

2.44.45

MURATANI; Hirofumi - Kawasaki JP
Muratani; Hirofumi - Kanagawa N/A JP
- Kanagawa JP
Muratani; Hirofumi - Kawasaki-shi JP
Muratani; Hirofumi - Tokyo JP
Muratani, Hirofumi - Minato-ku JP
Muratani; Hirofumi - Kanagawa-ken JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Information Processing Apparatus App 20180270014 - MURATANI; Hirofumi	2018-09-20
Authentication device, output device, verification device and input device Grant 9,509,492 - Smyth , et al. November 29, 2	2016-11-29
Public key cryptography computing device Grant 9,280,518 - Yonemura , et al. March 8, 2	2016-03-08
Decompressing apparatus and compressing apparatus Grant 8,934,631 - Hanatani , et al. January 13, 2	2015-01-13
Arithmetic device, method, and program product Grant 8,924,448 - Isogai , et al. December 30, 2	2014-12-30
Arithmetic device, method, and program product Grant 08924448 -	2014-12-30
Computing Device, Computing Method, And Computer Program Product App 20140337403 - Yonemura; Tomoko ; et al.	2014-11-13
Authentication Device, Output Device, Verification Device And Input Device App 20140334622 - SMYTH; Ben ; et al.	2014-11-13
Arithmetic device Grant 8,782,114 - Yonemura , et al. July 15, 2	2014-07-15
Apparatus for performing data compression processing using algebraic torus Grant 8,675,874 - Muratani , et al. March 18, 2	2014-03-18
Exponentiation calculation apparatus and method for calculating square root in finite extension field Grant 8,543,630 - Yonemura , et al. September 24, 2	2013-09-24
Computing Device App 20130246489 - YONEMURA; Tomoko ; et al.	2013-09-19
Representation converting apparatus, arithmetic apparatus, representation converting method, and computer program product Grant 8,533,243 - Yonemura , et al. September 10, 2	2013-09-10
Exponentiation Calculation Apparatus And Method For Calculating Square Root In Finite Extension Field App 20130218939 - YONEMURA; Tomoko ; et al.	2013-08-22
Exponentiation calculation apparatus and method for calculating square root in finite extension field Grant 8,438,205 - Yonemura , et al. May 7, 2	2013-05-07
Arithmetic Device, Method, And Program Product App 20120239721 - ISOGAI; Taichi ; et al.	2012-09-20
Apparatus and computer program product for performing data compression processing using algebraic torus Grant 8,233,616 - Muratani , et al. July 31, 2	2012-07-31
Decompressing Apparatus And Compressing Apparatus App 20120150931 - HANATANI; Yoshikazu ; et al.	2012-06-14
Arithmetic Device App 20120124114 - YONEMURA; Tomoko ; et al.	2012-05-17
Digital watermark embedding apparatus, digital watermark detecting apparatus, digital watermark embedding method, digital watermark detecting method and computer program product Grant 7,826,637 - Muratani November 2, 2	2010-11-02
Computing Device, Method, And Computer Program Product App 20100063986 - YONEMURA; Tomoko ; et al.	2010-03-11
Representation Converting Apparatus, Arithmetic Apparatus, Representation Converting Method, And Computer Program Product App 20100049777 - Yonemura; Tomoko ; et al.	2010-02-25
Encrypting Apparatus, Decrypting Apparatus, Cryptocommunication System, And Methods And Computer Program Products Therefor App 20100046745 - Hanatani; Yoshikazu ; et al.	2010-02-25
Apparatus For Performing Data Compression Processing Using Algebraic Torus App 20100046743 - Muratani; Hirofumi ; et al.	2010-02-25
Apparatus, Method, And Computer Program Product For Decrypting, And Apparatus, Method, And Computer Program Product For Encrypting App 20100046741 - ISOGAI; Taichi ; et al.	2010-02-25
Parameter Generating Device And Cryptographic Processing System App 20100046746 - YONEMURA; Tomoko ; et al.	2010-02-25
Apparatus And Computer Program Product For Performing Data Compression Processing Using Algebraic Torus App 20100046742 - MURATANI; Hirofumi ; et al.	2010-02-25
Digital watermark embedding apparatus, method and program, and digital watermark detection apparatus, method and program Grant 7,646,882 - Muratani January 12, 2	2010-01-12
Code generating method and unit thereof, code detecting method and unit thereof, and watermark embedding unit and watermark detecting unit Grant 7,624,273 - Muratani November 24, 2	2009-11-24
Digital watermark embedding apparatus and method, and digital watermark analysis apparatus, method and program Grant 7,613,320 - Muratani November 3, 2	2009-11-03
Decryption Processing Apparatus, System, Method, And Computer Program Product App 20090207999 - Yonemura; Tomoko ; et al.	2009-08-20
Rendering device, recording device, copy control method, and program Grant 7,578,000 - Kambayashi , et al. August 18, 2	2009-08-18
Pirate User Detecting Apparatus, Collusion-secure Code Generating Apparatus, And Collusion-secure Code Generating Program App 20090183258 - ISOGAI; Taichi ; et al.	2009-07-16
Digital Watermark Embedding Apparatus And Method, And Digital Watermark Analysis Apparatus, Method And Program App 20090049304 - Muratani; Hirofumi	2009-02-19
Digital watermark embedding apparatus and method, and digital watermark analysis apparatus, method and program Grant 7,443,999 - Muratani October 28, 2	2008-10-28
Identification information embedding apparatus and identification information analysis apparatus Grant 7,346,777 - Muratani March 18, 2	2008-03-18
Encryption apparatus and method, and decryption apparatus and method based on block encryption Grant 7,305,085 - Ohkuma , et al. December 4, 2	2007-12-04
Identification Information Embedding Apparatus And Identification Information Analysis Apparatus App 20070266255 - MURATANI; Hirofumi	2007-11-15
Identification Information Embedding Apparatus And Identification Information Analysis Apparatus App 20070255956 - MURATANI; Hirofumi	2007-11-01
Encryption apparatus and method, and decryption apparatus and method based on block encryption Grant 7,227,948 - Ohkuma , et al. June 5, 2	2007-06-05
Cryptographic protocol security verification apparatus, cryptographic protocol design apparatus, cryptographic protocol security verification method, cryptographic protocol design method and computer program product App 20070098151 - Muratani; Hirofumi	2007-05-03
Encryption apparatus and method, and decryption apparatus and method based on block encryption Grant 7,209,556 - Ohkuma , et al. April 24, 2	2007-04-24
Encryption apparatus, decryption apparatus, expanded key generating apparatus and method therefor, and recording medium Grant 7,194,090 - Muratani , et al. March 20, 2	2007-03-20
Encryption Apparatus And Method, And Decryption Apparatus And Method Based On Block Encryption App 20070058805 - Ohkuma; Kenji ; et al.	2007-03-15
Digital watermark embedding method, digital watermark embedding apparatus, digital watermark detecting method, and digital watermark detecting apparatus Grant 7,123,744 - Muratani , et al. October 17, 2	2006-10-17
Digital watermark detecting device and method thereof Grant 7,099,493 - Muratani August 29, 2	2006-08-29
Code generating method and unit thereof, code detecting method and unit thereof, and watermark embedding unit and watermark detecting unit Grant 7,082,537 - Muratani July 25, 2	2006-07-25
Digital watermark embedding apparatus, digital watermark detecting apparatus, digital watermark embedding method, digital watermark detecting method and computer program product App 20060120561 - Muratani; Hirofumi	2006-06-08
Digital watermark detection apparatus and digital watermark detection method App 20060104477 - Isogai; Taichi ; et al.	2006-05-18
Digital watermark detecting device and method thereof App 20060023913 - Muratani; Hirofumi	2006-02-02
Electronic watermark detection apparatus and method Grant 6,985,602 - Muratani January 10, 2	2006-01-10
Digital watermark detecting device and method thereof Grant 6,983,059 - Muratani January 3, 2	2006-01-03
Digital watermark embedding method and apparatus, and digital watermark Grant 6,952,486 - Yamakage , et al. October 4, 2	2005-10-04
Method for embedding codes, method and apparatus for restoring identification information App 20050154893 - Muratani, Hirofumi	2005-07-14
Code generating method and unit thereof, code detecting method and unit thereof, and watermark embedding unit and watermark detecting unit Grant 6,901,515 - Muratani May 31, 2	2005-05-31
Identification information embedding apparatus, analysis apparatus, embedding method, analysis method and program App 20050086484 - Muratani, Hirofumi	2005-04-21
Electronic watermark detection apparatus and method App 20050025339 - Muratani, Hirofumi	2005-02-03
Electronic watermark detection apparatus and method Grant 6,804,375 - Muratani October 12, 2	2004-10-12
Digital watermark embedding method and apparatus, and digital watermark App 20040184637 - Yamakage, Tomoo ; et al.	2004-09-23
Code generating method and unit thereof, code detecting method and unit thereof, and watermark embedding unit and watermark detecting unit App 20040153941 - Muratani, Hirofumi	2004-08-05
Digital watermark embedding device, digital watermark detection device, digital information distribution device, and, storage medium Grant 6,768,807 - Muratani July 27, 2	2004-07-27
Code generating method and unit thereof, code detecting method and unit thereof, and watermark embedding unit and watermark detecting unit App 20040143742 - Muratani, Hirofumi	2004-07-22
Digital watermark embedding apparatus, method and program, and digital watermark detection apparatus, method and program App 20040136528 - Muratani, Hirofumi	2004-07-15
Digital watermark embedding device, digital watermark detection device and recording medium recording computer readable program for realizing functions of two devices Grant 6,757,405 - Muratani , et al. June 29, 2	2004-06-29
Digital watermark embedding method and apparatus, and digital watermark Grant 6,741,723 - Yamakage , et al. May 25, 2	2004-05-25
Digital watermark embedding apparatus and method, and digital watermark analysis apparatus, method and program App 20040098593 - Muratani, Hirofumi	2004-05-20
Rendering device, copy control method and program App 20030215091 - Kambayashi, Toru ; et al.	2003-11-20
Identification information embedding apparatus and identification information analysis apparatus App 20030188168 - Muratani, Hirofumi	2003-10-02
Digital watermark embedding method, digital watermark embedding apparatus, digital watermark detecting method, and digital watermark detecting apparatus App 20030108219 - Muratani, Hirofumi ; et al.	2003-06-12
Digital watermark embedding method and apparatus, and digital watermark App 20030091213 - Yamakage, Tomoo ; et al.	2003-05-15
Rendering device, recording device, copy control method, and program App 20030065621 - Kambayashi, Toru ; et al.	2003-04-03
Digital watermark detecting device and method thereof App 20020116618 - Muratani, Hirofumi	2002-08-22
Digital watermark embedding apparatus, digital watermark detecting apparatus, digital watermark embedding method, digital watermark detecting method and computer program product App 20020071593 - Muratani, Hirofumi	2002-06-13
Encryption apparatus, decryption appatatus, expanded key generating apparatus and method therefor, and recording medium App 20020021802 - Muratani, Hirofumi ; et al.	2002-02-21
Electronic watermark detection apparatus and method App 20020021823 - Muratani, Hirofumi	2002-02-21
Encryption apparatus and method, and decryption apparatus and method based on block encryption App 20020016773 - Ohkuma, Kenji ; et al.	2002-02-07
Encryption apparatus and method, and decryption apparatus and method based on block encryption App 20010024502 - Ohkuma, Kenji ; et al.	2001-09-27
Information distribution system and billing system used for the information distribution system Grant 6,119,109 - Muratani , et al. September 12, 2	2000-09-12
Apparatus and method for receiving and decrypting encrypted data and protecting decrypted data from illegal use Grant 6,061,451 - Muratani , et al. May 9, 2	2000-05-09
Software use method control system Grant 5,968,175 - Morishita , et al. October 19, 1	1999-10-19
Multicast communication system allows user to join or leave multicast groups and specify communication quality using easily comprehensible and operable user terminal display Grant 5,832,229 - Tomoda , et al. November 3, 1	1998-11-03
High speed logic simulation system using time division emulation suitable for large scale logic circuits Grant 5,572,710 - Asano , et al. November 5, 1	1996-11-05