Isao Hirakodama

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Yokosuka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for controlling activation of mobile station, and mobile sta...
- Patent number 6,263,214
- Issue date Jul 17, 2001
- NTT Mobile Communications Network Inc.
- Hidetoshi Yazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of activation of mobile station
- Patent number 6,032,055
- Issue date Feb 29, 2000
- NTT Mobile Communications Network, Inc.
- Hidetoshi Yazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE