Yoshimichi Amma

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Sakura-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical fiber preform production method, optical fiber preform, and...
- Patent number 11,834,365
- Issue date Dec 5, 2023
- Fujikura Ltd.
- Yoshimichi Amma
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Multicore fiber
- Patent number 10,295,736
- Issue date May 21, 2019
- Fujikura Ltd.
- Yoshimichi Amma
- G02 - OPTICS
Information Patent Grant
Multicore fiber
- Patent number 9,817,183
- Issue date Nov 14, 2017
- Fujikura Ltd.
- Yoshimichi Amma
- G02 - OPTICS
Information Patent Grant
Multicore fiber connection method and multicore fiber connector usi...
- Patent number 9,709,742
- Issue date Jul 18, 2017
- Fujikura Ltd.
- Yoshimichi Amma
- G02 - OPTICS
Information Patent Grant
Multi-core fiber
- Patent number 9,588,284
- Issue date Mar 7, 2017
- Fujikura Ltd.
- Yusuke Sasaki
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL FIBER PREFORM PRODUCTION METHOD, OPTICAL FIBER PREFORM, AND...
- Publication number 20240051865
- Publication date Feb 15, 2024
- FUJIKURA LTD.
- Yoshimichi Amma
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
OPTICAL FIBER PREFORM PRODUCTION METHOD, OPTICAL FIBER PREFORM, AND...
- Publication number 20200369555
- Publication date Nov 26, 2020
- FUJIKURA LTD.
- Yoshimichi Amma
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
MULTICORE FIBER
- Publication number 20180356590
- Publication date Dec 13, 2018
- FUJIKURA LTD.
- Yoshimichi Amma
- G02 - OPTICS
Information Patent Application
MULTICORE FIBER
- Publication number 20170235043
- Publication date Aug 17, 2017
- FUJIKURA LTD.
- Yoshimichi Amma
- G02 - OPTICS
Information Patent Application
MULTICORE FIBER CONNECTION METHOD AND MULTICORE FIBER CONNECTOR USI...
- Publication number 20160187584
- Publication date Jun 30, 2016
- FUJIKURA LTD.
- Yoshimichi Amma
- G02 - OPTICS
Information Patent Application
MULTI-CORE FIBER
- Publication number 20160187576
- Publication date Jun 30, 2016
- FUJIKURA LTD.
- Yusuke Sasaki
- G02 - OPTICS