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Toshiki Sugawara
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Dallas, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Multiplex transmission apparatuses, multiplex transmission networks...
Patent number
7,386,012
Issue date
Jun 10, 2008
Hitachi, Ltd.
Toshiki Sugawara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multiplex transmission apparatuses, multiplex transmission networks...
Patent number
6,697,386
Issue date
Feb 24, 2004
Hitachi , Ltd.
Toshiki Sugawara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Self-healing network, method for transmission line switching thereo...
Patent number
6,625,115
Issue date
Sep 23, 2003
Hitachi, Ltd.
Hiroki Ikeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multiplex type transmitting apparatus
Patent number
6,411,631
Issue date
Jun 25, 2002
Hitachi, Ltd.
Toshiki Sugawara
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
Multiplex transmission apparatuses, multiplex transmission networks...
Patent number
6,169,754
Issue date
Jan 2, 2001
Hitachi, Ltd.
Toshiki Sugawara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Self-healing network, method for transmission line switching thereo...
Patent number
6,144,633
Issue date
Nov 7, 2000
Hitachi, Ltd.
Hiroki Ikeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multiplex type transmitting apparatus
Patent number
6,094,440
Issue date
Jul 25, 2000
Hitachi, Ltd.
Toshiki Sugawara
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 Applications
last 30 patents
Information
Patent Application
Multiplex transmission apparatuses, multiplex transmission networks...
Publication number
20040165618
Publication date
Aug 26, 2004
Hitachi, Ltd.
Toshiki Sugawara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Multiplex transmission apparatuses, multiplex transmission networks...
Publication number
20010001002
Publication date
May 10, 2001
Toshiki Sugawara
H04 - ELECTRIC COMMUNICATION TECHNIQUE