Mitsuru Naganuma

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Kunitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing various semiconductor optical devices of diffe...
- Patent number 5,585,957
- Issue date Dec 17, 1996
- Nippon Telegraph & Telephone Corporation
- Masashi Nakao
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Semiconductor wavelength conversion device
- Patent number 5,155,737
- Issue date Oct 13, 1992
- Nippon Telegraph & Telephone Corporation
- Masahiro Ikeda
- G02 - OPTICS