Kazuaki Negishi

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Tape-like optical fiber core, production method therefor, tape core...
- Patent number 8,811,783
- Issue date Aug 19, 2014
- Sumitomo Electric Industries, Ltd.
- Kousuke Tanaka
- G02 - OPTICS
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
Multimode optical fiber
- Patent number 7,773,847
- Issue date Aug 10, 2010
- Sumitomo Electric Industries, Ltd.
- Kazuaki Negishi
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Information Patent Application
Optical Fiber Temperature Distribution Measuring Apparatus, Method...
- Publication number 20090059996
- Publication date Mar 5, 2009
- Hidehiko Komeda
- G01 - MEASURING TESTING
Information Patent Application
Multimode optical fiber
- Publication number 20060263019
- Publication date Nov 23, 2006
- Kazuaki Negishi
- G02 - OPTICS
Information Patent Application
Tape-like optical fiber core, production method therefor, tape core...
- Publication number 20050201697
- Publication date Sep 15, 2005
- Kousuke Tanaka
- G02 - OPTICS