Ikuo Tokizawa

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Yokosuka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cross-connect apparatus capable of avoiding a superfluous detour ro...
- Patent number 5,414,415
- Issue date May 9, 1995
- Nippon Telegraph and Telephone Corp.
- Hiromi Ueda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Parallel transmission system
- Patent number 4,818,995
- Issue date Apr 4, 1989
- Hitachi Ltd.
- Yoshitaka Takahashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE