Hidetake Asahina

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Digital subscriber line transmission method, apparatus and system
- Patent number 7,423,984
- Issue date Sep 9, 2008
- Fujitsu Limited
- Kazutomo Hasegawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital subscriber line transmission method, apparatus and system
- Patent number 7,336,627
- Issue date Feb 26, 2008
- Fujitsu Limited
- Kazutomo Hasegawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital subscriber line transmission method, apparatus and system
- Patent number 7,286,495
- Issue date Oct 23, 2007
- Fujitsu Limited
- Kazutomo Hasegawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Digital subscriber line transmission method, apparatus and system
- Publication number 20050237954
- Publication date Oct 27, 2005
- Kazutomo Hasegawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Digital subscriber line transmission method, apparatus and system
- Publication number 20050232171
- Publication date Oct 20, 2005
- Kazutomo Hasegawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE