Tomofumi ARAI

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Sakura-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing optical fiber base material and method of m...
- Patent number 10,246,366
- Issue date Apr 2, 2019
- Fujikura Ltd.
- Nobuo Oozeki
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Ytterbium-doped optical fiber, fiber laser and fiber amplifier
- Patent number 8,941,912
- Issue date Jan 27, 2015
- Fujikura Ltd.
- Shoji Tanigawa
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Ytterbium-doped optical fiber
- Patent number 8,774,590
- Issue date Jul 8, 2014
- Fujikura Ltd.
- Kentaro Ichii
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF MANUFACTURING OPTICAL FIBER BASE MATERIAL AND METHOD OF M...
- Publication number 20130081430
- Publication date Apr 4, 2013
- FUJIKURA LTD.
- Nobuo Oozeki
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
METHOD OF MANUFACTURING OPTICAL FIBER BASE MATERIAL AND METHOD OF M...
- Publication number 20130081429
- Publication date Apr 4, 2013
- FUJIKURA LTD.
- Nobuo Oozeki
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
YTTERBIUM-DOPED OPTICAL FIBER
- Publication number 20110206341
- Publication date Aug 25, 2011
- FUJIKURA LTD.
- Kentaro ICHII
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
YTTERBIUM-DOPED OPTICAL FIBER, FIBER LASER AND FIBER AMPLIFIER
- Publication number 20110142083
- Publication date Jun 16, 2011
- FUJIKURA LTD.
- Shoji TANIGAWA
- G02 - OPTICS