Shigeto Matsumoto

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical fiber manufacturing method using relative bulk densities
- Patent number 11,237,322
- Issue date Feb 1, 2022
- Furukawa Electric Co., Ltd.
- Shinichi Arai
- G02 - OPTICS
Information Patent Grant
Multi-core amplification optical fiber and multi-core optical fiber...
- Patent number 9,225,141
- Issue date Dec 29, 2015
- Furukawa Electric Co., Ltd.
- Yukihiro Tsuchida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical fiber for optical amplification, optical fiber amplifier, a...
- Patent number 8,537,458
- Issue date Sep 17, 2013
- Furukawa Electric Co., Ltd.
- Youko Yamanashi
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL FIBER MANUFACTURING METHOD
- Publication number 20200012042
- Publication date Jan 9, 2020
- FURUKAWA ELECTRIC CO., LTD.
- Shinichi ARAI
- G02 - OPTICS
Information Patent Application
METHOD FOR MANUFACTURING OPTICAL FIBER PREFORM AND METHOD FOR MANUF...
- Publication number 20190177204
- Publication date Jun 13, 2019
- FURUKAWA ELECTRIC CO., LTD.
- Shinichi ARAI
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
MULTI-CORE AMPLIFICATION OPTICAL FIBER AND MULTI-CORE OPTICAL FIBER...
- Publication number 20140240819
- Publication date Aug 28, 2014
- FURUKAWA ELECTRIC CO., LTD.
- Yukihiro TSUCHIDA
- G02 - OPTICS
Information Patent Application
OPTICAL FIBER FOR OPTICAL AMPLIFICATION, OPTICAL FIBER AMPLIFIER, A...
- Publication number 20110007385
- Publication date Jan 13, 2011
- FURUKAWA ELECTRIC CO., LTD.
- Youko YAMANASHI
- H01 - BASIC ELECTRIC ELEMENTS