Yuji Masuyama

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Wave length plate, wavelength filter and wavelength monitor
- Patent number 7,239,654
- Issue date Jul 3, 2007
- Mitsubishi Denki Kabushiki Kaisha
- Masao Imaki
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Wave length plate, wavelength filter and wavelength monitor
- Publication number 20040094698
- Publication date May 20, 2004
- Masao Imaki
- G02 - OPTICS