Isao Echizen

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Dynamic image content tamper detecting device and system
- Patent number 8,285,998
- Issue date Oct 9, 2012
- Hitachi Government & Public Corporation System Engineering, Ltd.
- Isao Echizen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for controlling contents by plurality of pieces o...
- Patent number 7,577,843
- Issue date Aug 18, 2009
- Hitachi, Ltd.
- Isao Echizen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of watermarking for binary images
- Patent number 7,499,565
- Issue date Mar 3, 2009
- Hitachi, Ltd.
- Yasuhiro Fujii
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and system for contents control
- Patent number 7,478,432
- Issue date Jan 13, 2009
- Hitachi, Ltd.
- Isao Echizen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of detecting digital watermark information
- Patent number 7,310,428
- Issue date Dec 18, 2007
- Hitachi, Ltd.
- Kousuke Anzai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for using contents
- Patent number 7,293,294
- Issue date Nov 6, 2007
- Hitachi, Ltd.
- Hiromi Ukai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Watermark information detection method
- Patent number 7,113,613
- Issue date Sep 26, 2006
- Hitachi, Ltd.
- Isao Echizen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method for embedding information and extracting the same
- Patent number 7,065,226
- Issue date Jun 20, 2006
- Hitachi, Ltd.
- Kousuke Anzai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Network system enabling transmission control
- Patent number 7,047,407
- Issue date May 16, 2006
- Hitachi, Ltd.
- Shinji Itoh
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital watermark data embedding method, and digital watermark data...
- Patent number 7,047,412
- Issue date May 16, 2006
- Hitachi, Ltd.
- Isao Echizen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of extracting digital watermark information and method of ju...
- Patent number 6,970,575
- Issue date Nov 29, 2005
- Hitachi, Ltd.
- Isao Echizen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Contents rendering control method, contents reproducing equipment,...
- Patent number 6,865,677
- Issue date Mar 8, 2005
- Hitachi, Ltd.
- Isao Echizen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for embedding information into contents
- Patent number 6,826,291
- Issue date Nov 30, 2004
- Hitachi, Ltd.
- Hiroshi Yoshiura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Water-mark embedding method and system
- Patent number 6,728,408
- Issue date Apr 27, 2004
- Hitachi, Ltd.
- Isao Echizen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Control method and apparatus for embedding information in data
- Patent number 6,711,276
- Issue date Mar 23, 2004
- Hitachi, Ltd.
- Hiroshi Yoshiura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of extracting digital watermark information and method of ju...
- Patent number 6,650,763
- Issue date Nov 18, 2003
- Hitachi, Ltd.
- Isao Echizen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital watermark image processing method
- Patent number 6,584,210
- Issue date Jun 24, 2003
- Hitachi, Ltd.
- Jun′ichi Taguchi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of extracting digital watermark information and method of ju...
- Patent number 6,563,935
- Issue date May 13, 2003
- Hitachi, Ltd.
- Isao Echizen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of extracting digital watermark information and method of ju...
- Patent number 6,456,727
- Issue date Sep 24, 2002
- Hitachi, Ltd.
- Isao Echizen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of authenticating digital-watermark pictures
- Patent number 6,418,232
- Issue date Jul 9, 2002
- Hitachi, Ltd.
- Kazunori Nakano
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
DYNAMIC IMAGE CONTENT TAMPER DETECTING DEVICE AND SYSTEM
- Publication number 20100146282
- Publication date Jun 10, 2010
- Isao Echizen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Electronic watermarking method and storage medium for storing elect...
- Publication number 20060015735
- Publication date Jan 19, 2006
- Kei Kudo
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
System and method for controlling contents by plurality of pieces o...
- Publication number 20050120218
- Publication date Jun 2, 2005
- Isao Echizen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method of watermarking for binary images
- Publication number 20050025333
- Publication date Feb 3, 2005
- Yasuhiro Fujii
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method and apparatus for using contents
- Publication number 20040088549
- Publication date May 6, 2004
- Hitachi, Ltd.
- Hiromi Ukai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method of extracting digital watermark information and method of ju...
- Publication number 20040062416
- Publication date Apr 1, 2004
- Isao Echizen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Watermarking application system for broadcast contents copyright pr...
- Publication number 20040025023
- Publication date Feb 5, 2004
- Takaaki Yamada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method of detecting digital watermark information
- Publication number 20040008865
- Publication date Jan 15, 2004
- Kousuke Anzai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method for embedding digital watermark information
- Publication number 20040008923
- Publication date Jan 15, 2004
- Kousuke Anzai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Network system enabling transmission control
- Publication number 20030105979
- Publication date Jun 5, 2003
- Shinji Itoh
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method of extracting digital watermark information and method of ju...
- Publication number 20030021444
- Publication date Jan 30, 2003
- Isao Echizen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Watermark information detection method
- Publication number 20020186861
- Publication date Dec 12, 2002
- Isao Echizen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method and system for contents control
- Publication number 20020188840
- Publication date Dec 12, 2002
- Isao Echizen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and system for embedding information into contents
- Publication number 20020076086
- Publication date Jun 20, 2002
- Hiroshi Yoshiura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Digital watermark data embedding method, and digital watermark data...
- Publication number 20020007403
- Publication date Jan 17, 2002
- Isao Echizen
- G06 - COMPUTING CALCULATING COUNTING

Isao Echizen

Person

Patents Grantslast 30 patents

Dynamic image content tamper detecting device and system

System and method for controlling contents by plurality of pieces o...

Method of watermarking for binary images

Method and system for contents control

Method of detecting digital watermark information

Method and apparatus for using contents

Watermark information detection method

Method for embedding information and extracting the same

Network system enabling transmission control

Digital watermark data embedding method, and digital watermark data...

Method of extracting digital watermark information and method of ju...

Contents rendering control method, contents reproducing equipment,...

Method and system for embedding information into contents

Water-mark embedding method and system

Control method and apparatus for embedding information in data

Method of extracting digital watermark information and method of ju...

Digital watermark image processing method

Method of extracting digital watermark information and method of ju...

Method of extracting digital watermark information and method of ju...

Method of authenticating digital-watermark pictures

Patents Applicationslast 30 patents

DYNAMIC IMAGE CONTENT TAMPER DETECTING DEVICE AND SYSTEM

Electronic watermarking method and storage medium for storing elect...

System and method for controlling contents by plurality of pieces o...

Method of watermarking for binary images

Method and apparatus for using contents

Method of extracting digital watermark information and method of ju...

Watermarking application system for broadcast contents copyright pr...

Method of detecting digital watermark information

Method for embedding digital watermark information

Network system enabling transmission control

Method of extracting digital watermark information and method of ju...

Watermark information detection method

Method and system for contents control

Method and system for embedding information into contents

Digital watermark data embedding method, and digital watermark data...