Inventor
OSAKA TAKEO
JP7 patents
⚠️ This page may combine multiple inventors who share the name “OSAKA TAKEO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
5 patentsUS6452701B1Sep 17, 2002
Wavelength division multiplexing communications network supervisory system
FUJITSU LTD20 citations91
US7146100B2Dec 5, 2006
Repeater and Raman amplification repeating system
FUJITSU LTD10 citations71
US6816683B2Nov 9, 2004
Wavelength division multiplexing communications network supervisory system
FUJITSU LTD3 citations61
US6301032B1Oct 9, 2001
Optical multiplexing/demultiplexing device
FUJITSU LTD5 citations61
US5768011AJun 16, 1998
Optical amplifying repeater
FUJITSU LTD4 citations58