Takao Nishikawa

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Itabashi-ku, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical fiber monitoring system
- Patent number 10,254,197
- Issue date Apr 9, 2019
- Hitachi Metals, Ltd.
- Kanako Suzuki
- G01 - MEASURING TESTING
Information Patent Grant
Duplex LC communication light detecting adapter and duplex LC commu...
- Patent number 9,813,218
- Issue date Nov 7, 2017
- Hitachi Metals, Ltd.
- Kanako Suzuki
- G02 - OPTICS
Information Patent Grant
Duplex LC communication light detecting adapter and duplex LC commu...
- Patent number 9,497,016
- Issue date Nov 15, 2016
- Hitachi Metals, Ltd.
- Kanako Suzuki
- G02 - OPTICS
Information Patent Grant
Communication light detecting device
- Patent number 8,213,791
- Issue date Jul 3, 2012
- Hitachi Cable, Ltd.
- Seiji Kojima
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL FIBER MONITORING SYSTEM
- Publication number 20180128709
- Publication date May 10, 2018
- Hitachi Metals, Ltd.
- Kanako SUZUKI
- G01 - MEASURING TESTING
Information Patent Application
DUPLEX LC COMMUNICATION LIGHT DETECTING ADAPTER AND DUPLEX LC COMMU...
- Publication number 20150288447
- Publication date Oct 8, 2015
- Hitachi Metals, Ltd.
- Kanako SUZUKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DUPLEX LC COMMUNICATION LIGHT DETECTING ADAPTER AND DUPLEX LC COMMU...
- Publication number 20150286014
- Publication date Oct 8, 2015
- Hitachi Metals, Ltd.
- Kanako SUZUKI
- G02 - OPTICS
Information Patent Application
OPTICAL CONNECTOR
- Publication number 20100329604
- Publication date Dec 30, 2010
- Hitachi Cable, Ltd.
- Seiji KOJIMA
- G02 - OPTICS
Information Patent Application
Communication Light Detecting Device
- Publication number 20100008676
- Publication date Jan 14, 2010
- Seiji Kojima
- G02 - OPTICS