Inventor
TOKUMASU TSUGIO
JP7 patents
⚠️ This page may combine multiple inventors who share the name “TOKUMASU TSUGIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FDK CORP
6 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
US7006273B2Feb 28, 2006
Faraday rotation device and optical device using same
FDK CORP9 citations71
US6876480B2Apr 5, 2005
Farady rotation device and optical device comprising it
FDK CORP7 citations71
US7050232B2May 23, 2006
Optical circulator and optical switch
FDK CORP5 citations59
US7050216B2May 23, 2006
Variable optical filter
FDK CORP0 citations40