Inventor
KAGAWA MASATOSHI
JP10 patents
⚠️ This page may combine multiple inventors who share the name “KAGAWA MASATOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OKI ELECTRIC IND CO LTD
6 patentsUS7974542B2Jul 5, 2011
OTDM-DPSK signal generator capable of detecting an optical carrier phase difference between optical pulses
OKI ELECTRIC IND CO LTD12 citations81
US7877010B2Jan 25, 2011
Device for monitoring the quality of an optical signal by filtering its beat component
OKI ELECTRIC IND CO LTD4 citations60
US7783203B2Aug 24, 2010
System and method for controlling a difference in optical phase and an optical signal transmitter
OKI ELECTRIC IND CO LTD2 citations60
US7630640B2Dec 8, 2009
Bidirectional time division multiplexing optical communication system
OKI ELECTRIC IND CO LTD2 citations59
US7957646B2Jun 7, 2011
Optical time division multiplexing transmitter
OKI ELECTRIC IND CO LTD0 citations39
US7903976B2Mar 8, 2011
Optical element integrated module
OKI ELECTRIC IND CO LTD0 citations39
KAGAWA MASATOSHI
4 patentsUS8121475B2Feb 21, 2012
Optical signal quality monitor for a high-bit rate signal
KAGAWA MASATOSHI7 citations79
US8208819B2Jun 26, 2012
Optical signal generator
KAGAWA MASATOSHI0 citations48
US8165473B2Apr 24, 2012
Optical-time-division-multiplexing differential phase shift keying signal generating apparatus
KAGAWA MASATOSHI1 citations48
US8494361B2Jul 23, 2013
Apparatus for monitoring optical signal quality specifically applicable to NRZ optical signals
KAGAWA MASATOSHI0 citations37