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Takashi Kogo
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Yokohama, JP
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last 30 patents
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Patent Grant
Lead-containing fluoride glass, optical fiber and process for produ...
Patent number
5,695,880
Issue date
Dec 9, 1997
Sumitomo Electric Industries, Ltd.
Takashi Kogo
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Lead-containing fluoride glass, optical fiber and process for produ...
Patent number
5,432,131
Issue date
Jul 11, 1995
Sumitomo Electric Industtries, Ltd.
Takashi Kogo
C03 - GLASS MINERAL OR SLAG WOOL