Osamu Katsumata

Follow

Person

Yokohama, JP

People

Patents Grantslast 30 patents

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
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