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Omiya, JP
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last 30 patents
Information
Patent Grant
Method and apparatus for path trace check
Patent number
6,226,270
Issue date
May 1, 2001
Fujitsu Limited
Isao Chiku
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transmission quality monitoring system for a digital communication...
Patent number
5,706,280
Issue date
Jan 6, 1998
Fujitsu Limited
Toru Kosugi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital cross connect system
Patent number
5,189,410
Issue date
Feb 23, 1993
Fujitsu Limited
Toru Kosugi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Zero string error detection circuit
Patent number
5,119,380
Issue date
Jun 2, 1992
Fujitsu Limited
Satoshi Ohwada
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Bipolar with eight-zeros substitution and bipolar with six-zeros su...
Patent number
4,887,083
Issue date
Dec 12, 1989
Fujitsu Limited
Toru Kosugi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital data multiple conversion system for converting data having...
Patent number
4,841,524
Issue date
Jun 20, 1989
Fujitsu Limited
Hirohisa Miyaou
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System for controlling a change of sequence order of channel data
Patent number
4,740,959
Issue date
Apr 26, 1988
Fujitsu Limited
Toru Kosugi
H04 - ELECTRIC COMMUNICATION TECHNIQUE