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Ryugen Yonemura
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Yokohama-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical data link
Patent number
6,958,907
Issue date
Oct 25, 2005
Sumitomo Electric Industries, Ltd.
Shunsuke Sato
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical module with lens holding member
Patent number
6,843,609
Issue date
Jan 18, 2005
Sumitomo Electric Industries, Ltd.
Ryugen Yonemura
G02 - OPTICS
Information
Patent Grant
Optical transceiver
Patent number
6,540,412
Issue date
Apr 1, 2003
Sumitomo Electric Industries, Ltd.
Ryugen Yonemura
G02 - OPTICS
Information
Patent Grant
Road marker magnetizing method
Patent number
6,378,772
Issue date
Apr 30, 2002
Public Works Research Institute
Ryugen Yonemura
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Optical connector structure, optical fiber cord assembly and proces...
Patent number
5,661,832
Issue date
Aug 26, 1997
Sumitomo Electric Industries, Ltd.
Ryugen Yonemura
G02 - OPTICS
Information
Patent Grant
System of detecting troubles of an optical communication line
Patent number
5,539,558
Issue date
Jul 23, 1996
Sumitomo Electric Industries, Ltd.
Ryugen Yonemura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical module
Patent number
5,233,676
Issue date
Aug 3, 1993
Sumitomo Electric Industries, Ltd.
Ryugen Yonemura
G02 - OPTICS
Information
Patent Grant
Optical fiber connector with housing assembly for an assuring compl...
Patent number
5,224,186
Issue date
Jun 29, 1993
Sumitomo Electric Industries, Ltd.
Koji Kishimoto
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
Optical assembly with a sleeve assembly comprising a resin cover an...
Publication number
20050238295
Publication date
Oct 27, 2005
Sumitomo Electric Industries, Ltd.
Ryugen Yonemura
G02 - OPTICS
Information
Patent Application
Optical data link
Publication number
20040062491
Publication date
Apr 1, 2004
Shunsuke Sato
G02 - OPTICS
Information
Patent Application
Optical module
Publication number
20020149861
Publication date
Oct 17, 2002
Ryugen Yonemura
G02 - OPTICS
Information
Patent Application
Optical transceiver
Publication number
20010024551
Publication date
Sep 27, 2001
Ryugen Yonemura
G02 - OPTICS