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Takayuki Oyama
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Tokyo, JP
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last 30 patents
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Patent Grant
Metal plate for preventing radiowave leakage through an aperture in...
Patent number
8,222,977
Issue date
Jul 17, 2012
NEC Corporation
Takayuki Oyama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Polarization transformation circuit
Patent number
7,772,939
Issue date
Aug 10, 2010
NEC Corporation
Naotsugu Watanabe
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
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Patent Application
DIVIDABLE WAVEGUIDE
Publication number
20110205000
Publication date
Aug 25, 2011
NEC Corporation
Takayuki Oyama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
WAVEGUIDE COUPLER
Publication number
20110006854
Publication date
Jan 13, 2011
Takayuki Oyama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Polarization transformation
Publication number
20080068274
Publication date
Mar 20, 2008
NEC Corporation
Naotsugu Watanabe
H01 - BASIC ELECTRIC ELEMENTS