Yoshiyuki Sugahara

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical amplifier and fabrication method thereof
- Patent number 7,526,176
- Issue date Apr 28, 2009
- EpiPhotonics Corp.
- Keiichi Nashimoto
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL AMPLIFIER AND PRODUCTION METHOD THEREOF
- Publication number 20100110536
- Publication date May 6, 2010
- EpiPHOTONICS CORP.
- Keiichi Nashimoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Optical amplifier and fabrication method thereof
- Publication number 20070237483
- Publication date Oct 11, 2007
- Keiichi Nashimoto
- H01 - BASIC ELECTRIC ELEMENTS