Masaki Kotoku

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Kanagawa-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polarization-independent waveguide-type optical interference circuit
- Patent number 8,346,030
- Issue date Jan 1, 2013
- Nippon Telegraph and Telephone Corporation
- Yasuaki Hashizume
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
POLARIZATION-INDEPENDENT WAVEGUIDE-TYPE OPTICAL INTERFERENCE CIRCUIT
- Publication number 20110103736
- Publication date May 5, 2011
- Nippon Telegraph and Telephone Corporation
- Yasuaki Hashizume
- G02 - OPTICS