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Masakazu Oi
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Kawasaki, JP
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last 30 patents
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Patent Grant
Subscriber terminating equipment
Patent number
6,778,489
Issue date
Aug 17, 2004
Fujitsu Limited
Kazuyoshi Maruyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Pulse transmission device for use in long-distance communication
Patent number
6,532,260
Issue date
Mar 11, 2003
Fujitsu Limited
Masakazu Oi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Long-distance transmission system and device
Patent number
6,434,220
Issue date
Aug 13, 2002
Fujitsu Limited
Masakazu Oi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Network termination device with automatic detection and correction...
Patent number
6,320,940
Issue date
Nov 20, 2001
Fujitsu Limited
Masakazu Oi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Pulse transmission circuit with undershoot eliminating circuitry
Patent number
5,331,213
Issue date
Jul 19, 1994
Fujitsu Limited
Hisakazu Ohmori
H03 - BASIC ELECTRONIC CIRCUITRY