Tatsuya Fujiyama

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Network management system for generating setup information for a pl...
- Patent number 7,143,151
- Issue date Nov 28, 2006
- Hitachi, Ltd.
- Makoto Kayashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Security system design supporting method
- Patent number 7,089,581
- Issue date Aug 8, 2006
- Hitachi, Ltd.
- Yasuhiko Nagai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for evaluating security and method and apparat...
- Patent number 6,971,026
- Issue date Nov 29, 2005
- Hitachi, Ltd.
- Tatsuya Fujiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of collectively managing dispersive log, network system and...
- Patent number 6,336,141
- Issue date Jan 1, 2002
- Hitachi, Ltd.
- Tatsuya Fujiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Network communication system
- Patent number 6,195,366
- Issue date Feb 27, 2001
- Hitachi, Ltd.
- Makoto Kayashima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of collectively managing dispersive log, network system and...
- Patent number 6,052,728
- Issue date Apr 18, 2000
- Hitachi, Ltd.
- Tatsuya Fujiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Security specification creation support device and method of securi...
- Publication number 20040230822
- Publication date Nov 18, 2004
- Hitachi, Ltd.
- Tatsuya Fujiyama
- G06 - COMPUTING CALCULATING COUNTING