Shigeo Yamanaka

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Light-emission error preventing circuit for optical transmitter
- Patent number 8,897,653
- Issue date Nov 25, 2014
- Mitsubishi Electric Corporation
- Kenji Senoo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical wavelength division multiplexing device
- Patent number 7,236,703
- Issue date Jun 26, 2007
- Mitsubishi Denki Kabushiki Kaisha
- Shigeo Yamanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission apparatus
- Patent number 7,034,996
- Issue date Apr 25, 2006
- Mitsubishi Denki Kabushiki Kaisha
- Shigeo Yamanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Odor concentration measurement method and apparatus for use in fire...
- Patent number 5,623,212
- Issue date Apr 22, 1997
- Nohmi Bosai Ltd.
- Shigeo Yamanaka
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
LIGHT-EMISSION ERROR PREVENTING CIRCUIT FOR OPTICAL TRANSMITTER
- Publication number 20120128348
- Publication date May 24, 2012
- Mitsubishi Electric Corporation
- Kenji Senoo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmission apparatus
- Publication number 20050141079
- Publication date Jun 30, 2005
- Mitsubishi Denki Kabushiki Kaisha
- Shigeo Yamanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE