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Takaaki Takeda
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Fujisawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical wireless communication system
Patent number
5,959,754
Issue date
Sep 28, 1999
Victor Company of Japan, Ltd.
Yoshitaka Sakurai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical radio transmission system and a method for adjusting optica...
Patent number
5,532,858
Issue date
Jul 2, 1996
Nit Data Communications Victor Company of Japan
Kazutoshi Hirohashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical radio repeater with signal quality detection
Patent number
5,349,463
Issue date
Sep 20, 1994
Victor Company of Japan
Kazutoshi Hirohashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Repeater system
Patent number
5,289,306
Issue date
Feb 22, 1994
Victor Company of Japan
Kazutoshi Hirohashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL TRANSMISSION DEVICE, OPTICAL TRANSMISSION SYSTEM, AND OPTIC...
Publication number
20240204903
Publication date
Jun 20, 2024
NEC Corporation
Takaaki TAKEDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
System and method for measuring quality of service
Publication number
20020055999
Publication date
May 9, 2002
NEC Engineering, Ltd.
Takaaki Takeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE