Hitoshi Imagawa

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Kunitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Transmission convergence sublayer multiplex generating/terminating...
- Patent number 5,594,724
- Issue date Jan 14, 1997
- NEC Corporation
- Masao Akata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Self-routing switch and its routing method
- Patent number 5,022,025
- Issue date Jun 4, 1991
- Nippon Telegraph & Telephone Corporation
- Shigeo Urushidani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Self-routing switch
- Patent number 4,864,558
- Issue date Sep 5, 1989
- Nippon Telegraph & Telephone Corporation
- Hitoshi Imagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE