Masaru Takechi

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of measuring frequency response of optical coherent receiver
- Patent number 10,056,977
- Issue date Aug 21, 2018
- Sumitomo Electric Industries, Ltd
- Masaru Takechi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical receiver and optical axis alignment method thereof
- Patent number 9,780,884
- Issue date Oct 3, 2017
- Sumitomo Electric Industries, Ltd
- Masaru Takechi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical receiver and optical axis alignment method thereof
- Patent number 9,780,885
- Issue date Oct 3, 2017
- Sumitomo Electric Industries, Ltd
- Masaru Takechi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical module having multi-mode coupler formed on semiconductor su...
- Patent number 9,684,126
- Issue date Jun 20, 2017
- Sumitomo Electric Industries, Ltd
- Yasushi Fujimura
- G02 - OPTICS
Information Patent Grant
Optical receiver and method for manufacturing the same
- Patent number 9,419,723
- Issue date Aug 16, 2016
- Sumitomo Electric Industries, Ltd
- Masaru Takechi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical receiver device
- Patent number 9,163,982
- Issue date Oct 20, 2015
- Sumitomo Electric Industries, Ltd.
- Masaru Takechi
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF MEASURING FREQUENCY RESPONSE OF OPTICAL COHERENT RECEIVER
- Publication number 20180069624
- Publication date Mar 8, 2018
- Sumitomo Electric Industries, Ltd.
- Masaru Takechi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL RECEIVER AND OPTICAL AXIS ALIGNMENT METHOD THEREOF
- Publication number 20170237504
- Publication date Aug 17, 2017
- Sumitomo Electric Industries, Ltd.
- Masaru Takechi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL MODULE HAVING MULTI-MODE COUPLER FORMED ON SEMICONDUCTOR SU...
- Publication number 20170031099
- Publication date Feb 2, 2017
- Sumitomo Electric Industries, Ltd.
- Yasushi Fujimura
- G02 - OPTICS
Information Patent Application
OPTICAL RECEIVER AND OPTICAL AXIS ALIGNMENT METHOD THEREOF
- Publication number 20140376929
- Publication date Dec 25, 2014
- Masaru TAKECHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL RECEIVER AND METHOD FOR MANUFACTURING THE SAME
- Publication number 20140286651
- Publication date Sep 25, 2014
- Sumitomo Electric Industries, Ltd.
- Masaru TAKECHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL RECEIVER DEVICE
- Publication number 20110215225
- Publication date Sep 8, 2011
- Sumitomo Electric Industries, Ltd.
- Masaru Takechi
- H03 - BASIC ELECTRONIC CIRCUITRY