Masatoshi Takahashi

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
ATM-PON system and ONU automatic connection method
- Patent number 7,738,463
- Issue date Jun 15, 2010
- Hitachi, Ltd.
- Toshiyuki Saito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Bi-directional line switched ring network system
- Patent number 6,614,754
- Issue date Sep 2, 2003
- Hitachi, Ltd.
- Keiji Usuba
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Terminal multiplexer and method of constructing the terminal multip...
- Patent number 6,219,336
- Issue date Apr 17, 2001
- Hitachi, Ltd.
- Masatoshi Takahashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Terminal multiplexer and method of constructing the terminal multip...
- Patent number 6,049,525
- Issue date Apr 11, 2000
- Hitachi, Ltd.
- Masatoshi Takahashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
ATM-PON system and ONU automatic connection method
- Publication number 20060256811
- Publication date Nov 16, 2006
- Hitachi Communication Technologies, Ltd.
- Toshiyuki Saito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE