Inventor
UMEZAWA HIROMITSU
JP11 patents
Patents
11 patentsUS5521741AMay 28, 1996
Polarization plane switch and optical switching device using the same
FDK CORP28 citations89
US7280264B2Oct 9, 2007
Magneto-optical device
FDK CORP11 citations81
US6417952B1Jul 9, 2002
Faraday rotation angle varying device
FDK CORP11 citations73
US6288827B1Sep 11, 2001
Faraday rotator
FDK CORP10 citations72
US6108120AAug 22, 2000
Faraday rotation angle varying apparatus
FDK CORP9 citations72
US5965287AOct 12, 1999
Magneto-optical element material and Faraday element using the same
FDK CORP5 citations61
US5566017AOct 15, 1996
Material for magneto-optical element and faraday rotator using the same
FDK CORP5 citations61
US7336418B1Feb 26, 2008
Optical attenuator
FDK CORP4 citations60
US7009767B2Mar 7, 2006
Polarization separating/synthesizing element and optical device using it
FDK CORP2 citations60
US5547613AAug 20, 1996
Magneto-optical element material formed of magnetic garnet single crystals
FDK CORP3 citations57
US7551343B2Jun 23, 2009
Magneto-optical device and manufacturing method thereof
FDK CORP0 citations51