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Kiyoshi Oikawa
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Atsugi-shi, JP
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Patents Grants
last 30 patents
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Patent Grant
Optical fiber and production method thereof
Patent number
7,953,309
Issue date
May 31, 2011
Nippon Telegraph and Telephone Corporation
Atsushi Mori
C03 - GLASS MINERAL OR SLAG WOOL
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Patent Grant
Tellurite optical fiber and production method thereof
Patent number
7,677,059
Issue date
Mar 16, 2010
Nippon Telegraph and Telephone Corporation
Atsushi Mori
C03 - GLASS MINERAL OR SLAG WOOL
Patents Applications
last 30 patents
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Patent Application
OPTICAL FIBER AND PRODUCTION METHOD THEREOF
Publication number
20090060438
Publication date
Mar 5, 2009
Nippon Telegraph and Telephone Corporation
Atsushi Mori
G02 - OPTICS