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Yoshihiko Uematsu
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Data transmission control method, program therefor and data transmi...
Patent number
7,327,676
Issue date
Feb 5, 2008
Nippon Telegraph and Telephone Corporation
Shigeru Teruhi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Trunk transmission network
Patent number
6,598,092
Issue date
Jul 22, 2003
Nippon Telegraph and Telephone Corporation
Masahito Tomizawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Trunk transmission network
Patent number
6,202,082
Issue date
Mar 13, 2001
Nippon Telegraph and Telephone Corporation
Masahito Tomizawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Channel-selection-type demultiplexing circuit
Patent number
6,034,974
Issue date
Mar 7, 2000
Nippon Telegraph & Telephone Corporation
Shinji Matsuoka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Pointer processor and pointer processing scheme for SDH/SONET trans...
Patent number
5,751,720
Issue date
May 12, 1998
Nippon Telegraph & Telephone Corporation
Yoshihiko Uematsu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Hitless path switching apparatus and method
Patent number
5,631,896
Issue date
May 20, 1997
Nippon Telegraph & Telephone Corporation
Nobuyuki Kawase
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Data transmission control method, program therefor and data transmi...
Publication number
20030072269
Publication date
Apr 17, 2003
Nippon Telegraph and Telephone Corporation
Shigeru Teruhi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Trunk transmision network
Publication number
20010003833
Publication date
Jun 14, 2001
Nippon Telegraph and Telephone Corporation
Masahito Tomizawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE