Hideshi YOSHIDA

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical amplifier and an optical amplification method
- Patent number 8,576,480
- Issue date Nov 5, 2013
- NEC Corporation
- Hideshi Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical circuit and method for measuring monitor characteristic
- Patent number 7,989,754
- Issue date Aug 2, 2011
- NEC Corporation
- Hideshi Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Direct optical amplifier correlating average level of main signal w...
- Patent number 6,977,772
- Issue date Dec 20, 2005
- NEC Corporation
- Hideshi Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL AMPLIFIER AND AN OPTICAL AMPLIFICATION METHOD
- Publication number 20120314278
- Publication date Dec 13, 2012
- NEC Corporation
- Hideshi YOSHIDA
- G02 - OPTICS
Information Patent Application
OPTICAL CIRCUIT AND METHOD FOR MEASURING MONITOR CHARACTERISTIC
- Publication number 20090224144
- Publication date Sep 10, 2009
- Hideshi Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Direct optical amplifier correlating average level of main signal w...
- Publication number 20040013436
- Publication date Jan 22, 2004
- Hideshi Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE