Daigo Fujita

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Sakura-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical switch, optical add-drop module, and optical communication...
- Patent number 7,046,872
- Issue date May 16, 2006
- Fujikura Ltd.
- Ken Sakuma
- G02 - OPTICS
Information Patent Grant
Optical switch
- Patent number 6,741,775
- Issue date May 25, 2004
- Fujikura Ltd.
- Ken Sakuma
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Optical switch, optical add-drop module, and optical communication...
- Publication number 20030210855
- Publication date Nov 13, 2003
- Ken Sakuma
- G02 - OPTICS
Information Patent Application
Optical switch
- Publication number 20010055440
- Publication date Dec 27, 2001
- Ken Sakuma
- G02 - OPTICS