Tatsuo Nohara

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Authentication method and communication terminal and communication...
- Patent number 5,390,252
- Issue date Feb 14, 1995
- Nippon Telegraph & Telephone Corporation
- Shigefusa Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of authentication with improved security for secrecy of auth...
- Patent number 5,377,267
- Issue date Dec 27, 1994
- Nippon Telegraph & Telephone Corporation
- Shigefusa Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone network having personal numbers for position-independent
- Patent number 5,251,248
- Issue date Oct 5, 1993
- Nippon Telegraph & Telephone Corporation
- Hiroshi Tokunaga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE