Nobuhiro Umebayshi

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Tsukuba-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical communication device and laminated optical communication mo...
- Patent number 6,944,377
- Issue date Sep 13, 2005
- Hitachi Maxell, Ltd.
- Nobuhiro Umebayshi
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Optical communication device and laminated optical communication mo...
- Publication number 20050180681
- Publication date Aug 18, 2005
- Hitachi Maxell, Ltd.
- Nobuhiro Umebayshi
- G02 - OPTICS
Information Patent Application
Optical communication device and laminated optical communication mo...
- Publication number 20040091211
- Publication date May 13, 2004
- Hitachi Maxell, Ltd.
- Nobuhiro Umebayshi
- G02 - OPTICS