Makoto Sekijima

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical module for bi-directional communication system
- Patent number 7,403,716
- Issue date Jul 22, 2008
- TDK Corporation
- Adrian Lo
- G02 - OPTICS
Information Patent Grant
Optical module for bi-directional communication system
- Patent number 7,125,174
- Issue date Oct 24, 2006
- TDK Corporation
- Adrian Lo
- G02 - OPTICS
Information Patent Grant
Optical fiber terminal with optical isolator and semiconductor lase...
- Patent number 5,841,922
- Issue date Nov 24, 1998
- TDK Corporation
- Shinji Iwatsuka
- G02 - OPTICS
Information Patent Grant
Optical isolator, optical isolator with fiber and method for making...
- Patent number 5,691,845
- Issue date Nov 25, 1997
- TDK Corporation
- Shinji Iwatsuka
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Optical transceiver and optical module used in the same
- Publication number 20050185899
- Publication date Aug 25, 2005
- Adrian Lo
- G02 - OPTICS
Information Patent Application
Optical module for bi-directional communication system
- Publication number 20050158054
- Publication date Jul 21, 2005
- Adrian Lo
- G02 - OPTICS
Information Patent Application
Optical module for bi-directional communication system
- Publication number 20050157988
- Publication date Jul 21, 2005
- Adrian Lo
- G02 - OPTICS