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Hideo Kobayashi
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Mito, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Transmission line switching apparatus
Patent number
5,661,826
Issue date
Aug 26, 1997
Sumitomo Electric Industries, Ltd.
Kazuhito Saito
G02 - OPTICS
Information
Patent Grant
Optical fiber switching device having one of a robot mechanism and...
Patent number
5,613,021
Issue date
Mar 18, 1997
Sumitomo Electric Industries, Ltd.
Kazuhito Saito
G02 - OPTICS
Information
Patent Grant
Transmission line switching apparatus
Patent number
5,581,644
Issue date
Dec 3, 1996
Sumitomo Electric Industries, Ltd.
Kazuhito Saito
G02 - OPTICS
Information
Patent Grant
Optical fiber switching device and method
Patent number
5,504,825
Issue date
Apr 2, 1996
Sumitomo Electric Industries, Ltd.
Kazuhito Saito
G02 - OPTICS
Information
Patent Grant
Transmission line switching apparatus including connected optical f...
Patent number
5,436,987
Issue date
Jul 25, 1995
Sumitomo Electric Industries, Ltd.
Kazuhito Saito
G02 - OPTICS
Information
Patent Grant
Optical fiber wiring switching apparatus
Patent number
5,408,549
Issue date
Apr 18, 1995
Sumitomo Electric Industries, Ltd.
Mitsuaki Tamura
G02 - OPTICS
Information
Patent Grant
Optical fiber switching device having an optical fiber length adjus...
Patent number
5,386,485
Issue date
Jan 31, 1995
Sumitomo Electric Industries, Ltd.
Kazuhito Saito
G02 - OPTICS
Information
Patent Grant
Optical fiber switch including partitions for restricting surplus f...
Patent number
5,337,378
Issue date
Aug 9, 1994
Sumitomo Electric Industries, Ltd.
Kazuhito Saito
G02 - OPTICS