Yoshiyuki Yakabe

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical amplifier and optical fiber laser
- Patent number 7,038,845
- Issue date May 2, 2006
- NEC Corporation
- Yoshiyuki Yakabe
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Optical amplifier and optical fiber laser
- Publication number 20040001249
- Publication date Jan 1, 2004
- NEC Corporation
- Yoshiyuki Yakabe
- H01 - BASIC ELECTRIC ELEMENTS