Koichi Naniwae

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical device of waveguide type and its production method
- Patent number 7,454,111
- Issue date Nov 18, 2008
- NEC Corporation
- Kazuhiro Shiba
- G02 - OPTICS
Information Patent Grant
Multi-wavelength semiconductor light source and process for produci...
- Patent number 6,681,064
- Issue date Jan 20, 2004
- NEC Corporation
- Koichi Naniwae
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Optical device of waveguide type and its production method
- Publication number 20070003183
- Publication date Jan 4, 2007
- NEC Corporation
- Kazuhiro Shiba
- G02 - OPTICS
Information Patent Application
Multi-wavelength semiconductor light source and process for produci...
- Publication number 20020159705
- Publication date Oct 31, 2002
- NEC Corporation
- Koichi Naniwae
- G02 - OPTICS