Hiroshi Tsukahara

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Tokorozawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Mobile communications system and method with message storing function
- Patent number 6,064,876
- Issue date May 16, 2000
- NTT Mobile Communications Network, Inc.
- So Ishida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Cryptical control method for personal communication
- Patent number 5,677,954
- Issue date Oct 14, 1997
- NTT Mobile Communications Network, Inc.
- Shoichi Hirata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Mobile communication method for controlling origination or terminat...
- Patent number 5,649,301
- Issue date Jul 15, 1997
- NTT Mobile Communications Network, Inc.
- Masami Yabusaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE