Daisuke Uehara

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Transponder, transmission system, transmission method and transmiss...
- Patent number 7,920,559
- Issue date Apr 5, 2011
- NEC Corporation
- Naoya Shiota
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission system having an optical surge suppression fun...
- Patent number 6,486,991
- Issue date Nov 26, 2002
- NEC Corporation
- Daisuke Uehara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical ADM apparatus and an ADM optical transmission system includ...
- Patent number 6,335,810
- Issue date Jan 1, 2002
- NEC Corporation
- Daisuke Uehara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
WDM optical transmission system
- Patent number 6,320,684
- Issue date Nov 20, 2001
- NEC Corporation
- Daisuke Uehara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
WDM optical transmission system
- Patent number 6,256,125
- Issue date Jul 3, 2001
- NEC Corporation
- Daisuke Uehara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
TRANSPONDER, TRANSMISSION SYSTEM, TRANSMISSION METHOD AND TRANSMISS...
- Publication number 20080225887
- Publication date Sep 18, 2008
- NAOYA SHIOTA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmission system having an optical surge suppression fun...
- Publication number 20010038482
- Publication date Nov 8, 2001
- Daisuke Uehara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WDM optical transmission system
- Publication number 20010009465
- Publication date Jul 26, 2001
- Daisuke Uehara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE