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Katsuhiro Ochiai
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Yokohama-shi, JP
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Patents Grants
last 30 patents
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Patent Grant
Optical amplifying glass and optical waveguide
Patent number
6,819,860
Issue date
Nov 16, 2004
Asahi Glass Company, Limited
Seiki Ohara
C03 - GLASS MINERAL OR SLAG WOOL
Patents Applications
last 30 patents
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Patent Application
Optical amplifying glass and optical waveguide
Publication number
20030118316
Publication date
Jun 26, 2003
ASAHI GLASS COMPANY, LIMITED
Seiki Ohara
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
Method for connecting glass fibers
Publication number
20010047668
Publication date
Dec 6, 2001
ASAHI GLASS COMPANY, LIMITED
Katsuhiro Ochiai
G02 - OPTICS