Tomokazu Imura

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Kosai, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical circulator and optical switch
- Patent number 7,050,232
- Issue date May 23, 2006
- FDK Corporation
- Shusuke Wada
- G02 - OPTICS
Information Patent Grant
Polarization plane switch and optical switching device using the same
- Patent number 5,521,741
- Issue date May 28, 1996
- FDK Corporation
- Hiromitsu Umezawa
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Polarized wave coupling optical isolator
- Publication number 20070171528
- Publication date Jul 26, 2007
- Shohei Abe
- G02 - OPTICS
Information Patent Application
Polarized wave coupling optical isolator
- Publication number 20060077546
- Publication date Apr 13, 2006
- Shohei Abe
- G02 - OPTICS
Information Patent Application
Optical circulator and optical switch
- Publication number 20040012854
- Publication date Jan 22, 2004
- Shusuke Wada
- G02 - OPTICS
Information Patent Application
Polarized wave coupling optical isolator
- Publication number 20030030905
- Publication date Feb 13, 2003
- Shohei Abe
- G02 - OPTICS