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Masaaki Sudoh
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Sakura, JP
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last 30 patents
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Patent Grant
Method of making an optical waveguide grating with two dissimilar i...
Patent number
5,996,375
Issue date
Dec 7, 1999
Michihiro Nakai
G02 - OPTICS
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Patent Grant
Optical waveguide grating and production method therefor
Patent number
5,949,934
Issue date
Sep 7, 1999
Fujikura, Ltd.
Kensuke Shima
G02 - OPTICS
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Patent Grant
Optical filter with planar optical waveguide having periodically va...
Patent number
5,930,437
Issue date
Jul 27, 1999
Fujikura Ltd.
Michihiro Nakai
G02 - OPTICS