Hiroshi Fushimi

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Morinosato, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical switch, optical modulator and wavelength variable filter
- Patent number 7,492,975
- Issue date Feb 17, 2009
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- G02 - OPTICS
Information Patent Grant
Optical switch, optical modulator and wavelength variable filter
- Patent number 7,356,227
- Issue date Apr 8, 2008
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- G02 - OPTICS
Information Patent Grant
Optical switch, optical modulator and wavelength variable filter
- Patent number 7,340,116
- Issue date Mar 4, 2008
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- G02 - OPTICS
Information Patent Grant
Optical switch, optical modulator and wavelength variable filter
- Patent number 7,336,854
- Issue date Feb 26, 2008
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL SWITCH, OPTICAL MODULATOR AND WAVELENGTH VARIABLE FILTER
- Publication number 20070253659
- Publication date Nov 1, 2007
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- G02 - OPTICS
Information Patent Application
OPTICAL SWITCH, OPTICAL MODULATOR AND WAVELENGTH VARIABLE FILTER
- Publication number 20070092181
- Publication date Apr 26, 2007
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- G02 - OPTICS
Information Patent Application
OPTICAL SWITCH, OPTICAL MODULATOR AND WAVELENGTH VARIABLE FILTER
- Publication number 20070086691
- Publication date Apr 19, 2007
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- G02 - OPTICS
Information Patent Application
Optical switch, optical modulator and variable wavelength filter
- Publication number 20070058896
- Publication date Mar 15, 2007
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- G02 - OPTICS