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Satoru Miyazaki
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Yokohama, JP
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Patents Grants
last 30 patents
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Patent Grant
Optical transmission system, wavelength control method and node
Patent number
9,667,346
Issue date
May 30, 2017
Fujitsu Limited
Hirofumi Araki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical output power automatic attenuation circuit for optical comm...
Patent number
7,136,584
Issue date
Nov 14, 2006
Fujitsu Limited
Keisuke Harada
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Light amplifier device capable of suppressing light surge
Patent number
5,864,422
Issue date
Jan 26, 1999
Fujitsu Limited
Satoru Miyazaki
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM, WAVELENGTH CONTROL METHOD AND NODE
Publication number
20160204875
Publication date
Jul 14, 2016
Fujitsu Limited
Hirofumi Araki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TRANSMISSION SYSTEM, TRANSMISSION DEVICE, AND TRANSMISSION METHOD
Publication number
20160142300
Publication date
May 19, 2016
Fujitsu Limited
Hirofumi Araki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical output power automatic attenuation circuit for optical comm...
Publication number
20060098270
Publication date
May 11, 2006
FUJITSU LIMITED
Keisuke Harada
H04 - ELECTRIC COMMUNICATION TECHNIQUE