Kazumasa Makihara

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Yokohama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical fiber, optical transmission line, optical module, and optic...
- Patent number 7,894,697
- Issue date Feb 22, 2011
- Sumitomo Electric Industries, Ltd.
- Takashi Sasaki
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method of making optical fiber and optical fiber made by the method
- Patent number 7,317,856
- Issue date Jan 8, 2008
- Sumitomo Electric Industries, Ltd.
- Masaaki Hirano
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Optical fiber, optical transmission line, optical module and optica...
- Patent number 7,286,740
- Issue date Oct 23, 2007
- Sumitomo Electric Industries, Ltd.
- Takashi Sasaki
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Information Patent Application
Optical fiber, optical transmission line, optical module, and optic...
- Publication number 20100284658
- Publication date Nov 11, 2010
- SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Takashi Sasaki
- G02 - OPTICS
Information Patent Application
Analyzer, Authenticity Judging Device, Authenticity Judging Method,...
- Publication number 20090152475
- Publication date Jun 18, 2009
- Sumitomo Electric Industries, Ltd.
- Takashi Sasaki
- G02 - OPTICS
Information Patent Application
OPTICAL FIBER, OPTICAL TRANSMISSION LINE, OPTICAL MODULE AND OPTICA...
- Publication number 20070217754
- Publication date Sep 20, 2007
- Takashi Sasaki
- G02 - OPTICS
Information Patent Application
Method of making optical fiber and optical fiber made by the method
- Publication number 20060245705
- Publication date Nov 2, 2006
- Masaaki Hirano
- G02 - OPTICS