Dai Watanabe

Person

Hitachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Storage system executing encryption and decryption processing
- Patent number 8,526,615
- Issue date Sep 3, 2013
- Hitachi, Ltd.
- Kazuhisa Fujimoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Pseudorandom number generator and encryption device using the same
- Patent number 8,122,075
- Issue date Feb 21, 2012
- Hitachi, Ltd.
- Dai Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hash value generator
- Patent number 8,108,682
- Issue date Jan 31, 2012
- Hitachi, Ltd.
- Dai Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Storage system executing encryption and decryption processing
- Patent number 7,903,816
- Issue date Mar 8, 2011
- Hitachi, Ltd.
- Kazuhisa Fujimoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Storage system executing encryption and decryption processing
- Patent number 7,372,962
- Issue date May 13, 2008
- Hitachi, Ltd.
- Kazuhisa Fujimoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for symmetric-key decryption
- Patent number 7,359,515
- Issue date Apr 15, 2008
- Hitachi, Ltd.
- Soichi Furuya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Pseudorandom number generating apparatus or encryption or decryptio...
- Patent number 7,280,659
- Issue date Oct 9, 2007
- Hitachi, Ltd.
- Dai Watanabe
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Pseudorandom number generating apparatus or encryption or decryptio...
- Patent number 7,224,796
- Issue date May 29, 2007
- Hitachi, Ltd.
- Dai Watanabe
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for symmetric-key decryption
- Patent number 7,200,232
- Issue date Apr 3, 2007
- Hitachi, Ltd.
- Soichi Furuya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for symmetric-key encryption
- Patent number 7,110,545
- Issue date Sep 19, 2006
- Tokyo, Japan
- Soichi Furuya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Expert system development support system and expert system environm...
- Patent number 5,506,938
- Issue date Apr 9, 1996
- Hitachi, Ltd.
- Chihiro Fukui
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Expert system development support system and expert system environm...
- Patent number 5,359,701
- Issue date Oct 25, 1994
- Hitachi, Ltd.
- Chihiro Fukui
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Expert system development support system and expert system environm...
- Patent number 5,228,117
- Issue date Jul 13, 1993
- Hitachi, Ltd.
- Chihiro Fukui
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
STORAGE SYSTEM EXECUTING ENCRYPTION AND DECRYPTION PROCESSING
- Publication number 20110200191
- Publication date Aug 18, 2011
- Kazuhisa Fujimoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
HASH VALUE GENERATOR
- Publication number 20100049986
- Publication date Feb 25, 2010
- Hitachi, Ltd.
- Dai WATANABE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
STORAGE SYSTEM EXECUTING ENCRYPTION AND DECRYPTION PROCESSING
- Publication number 20090010432
- Publication date Jan 8, 2009
- Kazuhisa Fujimoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
PSEUDORANDOM NUMBER GENERATOR AND ENCRYTION DEVICE USING THE SAME
- Publication number 20080243977
- Publication date Oct 2, 2008
- Dai Watanabe
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
HASH VALUE GENERATION DEVICE, PROGRAM, AND HASH VALUE GENERATION ME...
- Publication number 20080063187
- Publication date Mar 13, 2008
- Hirotaka Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for symmetric-key decryption
- Publication number 20070064944
- Publication date Mar 22, 2007
- Soichi Furuya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Storage system executing encryption and decryption processing
- Publication number 20050220305
- Publication date Oct 6, 2005
- Kazuhisa Fujimoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Pseudorandom number generating apparatus or encryption or decryptio...
- Publication number 20020118830
- Publication date Aug 29, 2002
- Dai Watanabe
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Pseudorandom number generating apparatus or encryption or decryptio...
- Publication number 20020097868
- Publication date Jul 25, 2002
- Dai Watanabe
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method and apparatus for symmetric-key encryption
- Publication number 20010021253
- Publication date Sep 13, 2001
- Soichi Furuya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for symmetric-key encryption
- Publication number 20010021254
- Publication date Sep 13, 2001
- Soichi Furuya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Dai Watanabe

Person

Patents Grantslast 30 patents

Storage system executing encryption and decryption processing

Pseudorandom number generator and encryption device using the same

Hash value generator

Storage system executing encryption and decryption processing

Storage system executing encryption and decryption processing

Method and apparatus for symmetric-key decryption

Pseudorandom number generating apparatus or encryption or decryptio...

Pseudorandom number generating apparatus or encryption or decryptio...

Method and apparatus for symmetric-key decryption

Method and apparatus for symmetric-key encryption

Expert system development support system and expert system environm...

Expert system development support system and expert system environm...

Expert system development support system and expert system environm...

Patents Applicationslast 30 patents

STORAGE SYSTEM EXECUTING ENCRYPTION AND DECRYPTION PROCESSING

HASH VALUE GENERATOR

STORAGE SYSTEM EXECUTING ENCRYPTION AND DECRYPTION PROCESSING

PSEUDORANDOM NUMBER GENERATOR AND ENCRYTION DEVICE USING THE SAME

HASH VALUE GENERATION DEVICE, PROGRAM, AND HASH VALUE GENERATION ME...

Method and apparatus for symmetric-key decryption

Storage system executing encryption and decryption processing

Pseudorandom number generating apparatus or encryption or decryptio...

Pseudorandom number generating apparatus or encryption or decryptio...

Method and apparatus for symmetric-key encryption

Method and apparatus for symmetric-key encryption