Fumiyoshi Ohkubo

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical fiber temperature distribution measuring apparatus, method...
- Patent number 7,874,725
- Issue date Jan 25, 2011
- J-Power Systems Corporation
- Hidehiko Komeda
- G01 - MEASURING TESTING
Information Patent Grant
Single-mode optical fiber
- Patent number 5,946,439
- Issue date Aug 31, 1999
- Sumitomo Electric Industries, Ltd.
- Yoshiaki Terasawa
- G02 - OPTICS
Information Patent Grant
Single-mode optical fiber
- Patent number 5,913,005
- Issue date Jun 15, 1999
- Sumitomo Electric Industries, Ltd.
- Yoshiaki Terasawa
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
DISPERSION COMPENSATING MODULE
- Publication number 20100111486
- Publication date May 6, 2010
- Sumitomo Electric Industries, Ltd.
- Tetsuya HAYASHI
- G02 - OPTICS
Information Patent Application
Optical Fiber Temperature Distribution Measuring Apparatus, Method...
- Publication number 20090059996
- Publication date Mar 5, 2009
- Hidehiko Komeda
- G01 - MEASURING TESTING