Shigeo Arai

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Yokohama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for communications of frame relay data
- Patent number 6,442,167
- Issue date Aug 27, 2002
- Hitachi, Ltd.
- Toru Aramaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Method and apparatus for communications of frame relay data
- Publication number 20020181399
- Publication date Dec 5, 2002
- Hitachi, Ltd.
- Toru Aramaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE