Hideki Okuno

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical transmission system, and pumping light source stopping devi...
- Patent number 7,444,077
- Issue date Oct 28, 2008
- NEC Corporation
- Hideki Okuno
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical fiber holding structure
- Patent number 6,947,644
- Issue date Sep 20, 2005
- Mitsubishi Cable Industries, Ltd.
- Katsuaki Kondo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical fiber amplifying device stabilized for temperature and sign...
- Patent number 6,621,623
- Issue date Sep 16, 2003
- NEC Corporation
- Hideki Okuno
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Wavelength division multiplexing system, wavelength division multip...
- Patent number 6,297,895
- Issue date Oct 2, 2001
- NEC Corporation
- Hideki Okuno
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optically amplifying device with gain equalizing function
- Patent number 6,144,488
- Issue date Nov 7, 2000
- NEC Corporation
- Hideki Okuno
- G02 - OPTICS
Information Patent Grant
Optical signal channel counter and optical amplification device usi...
- Patent number 5,966,236
- Issue date Oct 12, 1999
- NEC Corporation
- Hideki Okuno
- G01 - MEASURING TESTING
Information Patent Grant
Optical amplification monitoring apparatus
- Patent number 5,680,247
- Issue date Oct 21, 1997
- NEC Corporation
- Hideki Okuno
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL COMMUNICATION APPARATUS, OPTICAL TRANSMISSION SYSTEM AND ME...
- Publication number 20090232496
- Publication date Sep 17, 2009
- Hideki OKUNO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmission system, and pumping light source stopping devi...
- Publication number 20050286898
- Publication date Dec 29, 2005
- NEC Corporation
- Hideki Okuno
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmission system
- Publication number 20050220454
- Publication date Oct 6, 2005
- NEC Corporation
- Hideki Okuno
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical fiber holding structure
- Publication number 20030012505
- Publication date Jan 16, 2003
- Katsuaki Kondo
- G02 - OPTICS